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CODE_OF_CONDUCT.md
# Code of Conduct - memorio
## Our Pledge
In the interest of fostering an open and welcoming environment, we as
contributors and maintainers pledge to make participation in our project and
our community a harassment-free experience for everyone, regardless of age, body
size, disability, ethnicity, sex characteristics, gender identity and expression,
level of experience, education, socio-economic status, nationality, personal
appearance, race, religion, or sexual identity and orientation.
## Our Standards
Examples of behavior that contributes to a positive environment for our
community include:
* Demonstrating empathy and kindness toward other people
* Being respectful of differing opinions, viewpoints, and experiences
* Giving and gracefully accepting constructive feedback
* Accepting responsibility and apologizing to those affected by our mistakes,
and learning from the experience
* Focusing on what is best not just for us as individuals, but for the
overall community
Examples of unacceptable behavior include:
* The use of sexualized language or imagery, and sexual attention or advances
* Trolling, insulting or derogatory comments, and personal or political attacks
* Public or private harassment
* Publishing others' private information, such as a physical or email
address, without their explicit permission
* Other conduct which could reasonably be considered inappropriate in a
professional setting
## Our Responsibilities
Project maintainers are responsible for clarifying and enforcing our standards of
acceptable behavior and will take appropriate and fair corrective action in
response to any behavior that they deem inappropriate,
threatening, offensive, or harmful.
Project maintainers have the right and responsibility to remove, edit, or reject
comments, commits, code, wiki edits, issues, and other contributions that are
not aligned to this Code of Conduct, and will
communicate reasons for moderation decisions when appropriate.
## Scope
This Code of Conduct applies within all community spaces, and also applies when
an individual is officially representing the community in public spaces.
Examples of representing our community include using an official e-mail address,
posting via an official social media account, or acting as an appointed
representative at an online or offline event.
## Enforcement
Instances of abusive, harassing, or otherwise unacceptable behavior may be
reported to the community leaders responsible for enforcement at <dariopassariello@gmail.com>.
All complaints will be reviewed and investigated promptly and fairly.
All community leaders are obligated to respect the privacy and security of the
reporter of any incident.
## Enforcement Guidelines
Community leaders will follow these Community Impact Guidelines in determining
the consequences for any action they deem in violation of this Code of Conduct:
### 1. Correction
**Community Impact**: Use of inappropriate language or other behavior deemed
unprofessional or unwelcome in the community.
**Consequence**: A private, written warning from community leaders, providing
clarity around the nature of the violation and an explanation of why the
behavior was inappropriate. A public apology may be requested.
### 2. Warning
**Community Impact**: A violation through a single incident or series
of actions.
**Consequence**: A warning with consequences for continued behavior. No
interaction with the people involved, including unsolicited interaction with
those enforcing the Code of Conduct, for a specified period of time. This
includes avoiding interactions in community spaces as well as external channels
like social media. Violating these terms may lead to a temporary or
permanent ban.
### 3. Temporary Ban
**Community Impact**: A serious violation of community standards, including
sustained inappropriate behavior.
**Consequence**: A temporary ban from any sort of interaction or public
communication with the community for a specified period of time. No public or
private interaction with the people involved, including unsolicited interaction
with those enforcing the Code of Conduct, is allowed during this period.
Violating these terms may lead to a permanent ban.
### 4. Permanent Ban
**Community Impact**: Demonstrating a pattern of violation of community
standards, including sustained inappropriate behavior, harassment of an
individual, or aggression toward or disparagement of classes of individuals.
**Consequence**: A permanent ban from any sort of public interaction within
the community.
# Contributing
First off, thanks for taking the time to contribute!
All types of contributions are encouraged and valued. See the [Table of Contents](contributing.md#table-of-contents) for different ways to help and details about how this project handles them. Please make sure to read the relevant section before making your contribution. It will make it a lot easier for us maintainers and smooth out the experience for all involved. The community looks forward to your contributions.
> And if you like the project, but just don't have time to contribute, that's fine. There are other easy ways to support the project and show your appreciation, which we would also be very happy about:
>
> * Star the project
> * Tweet about it
> * Refer this project in your project's readme
> * Mention the project at local meetups and tell your friends/colleagues
## Table of Contents
* [Code of Conduct](contributing.md#code-of-conduct)
* [I Have a Question](contributing.md#i-have-a-question)
* [I Want To Contribute](contributing.md#i-want-to-contribute)
* [Reporting Bugs](contributing.md#reporting-bugs)
* [Suggesting Enhancements](contributing.md#suggesting-enhancements)
* [Your First Code Contribution](contributing.md#your-first-code-contribution)
* [Improving The Documentation](contributing.md#improving-the-documentation)
* [Style guides](contributing.md#styleguides)
* [Commit Messages](contributing.md#commit-messages)
* [Join The Project Team](contributing.md#join-the-project-team)
## Code of Conduct
This project and everyone participating in it is governed by the [memorio Code of Conduct](https://github.com/a51-dev/a51.memorio/blob/CODE_OF_CONDUCT.md). By participating, you are expected to uphold this code. Please report unacceptable behavior to [dariopassariello@gmail.com](mailto:dariopassariello@gmail.com).
## I Have a Question
> If you want to ask a question, we assume that you have read the available [Documentation](https://a51.gitbook.io/memorio/).
Before you ask a question, it is best to search for existing [Issues](https://github.com/a51-dev/a51.memorio/issues) that might help you. In case you have found a suitable issue and still need clarification, you can write your question in this issue. It is also advisable to search the internet for answers first.
If you then still feel the need to ask a question and need clarification, we recommend the following:
* Open an [Issue](https://github.com/a51-dev/a51.memorio/issues/new).
* Provide as much context as you can about what you're running into.
* Provide project and platform versions (nodejs, npm, etc), depending on what seems relevant.
We will then take care of the issue as soon as possible.
## I Want To Contribute
> ### Legal Notice
>
> When contributing to this project, you must agree that you have authored 100% of the content, that you have the necessary rights to the content and that the content you contribute may be provided under the project license.
### Reporting Bugs
#### Before Submitting a Bug Report
A good bug report shouldn't leave others needing to chase you up for more information. Therefore, we ask you to investigate carefully, collect information and describe the issue in detail in your report. Please complete the following steps in advance to help us fix any potential bug as fast as possible.
* Make sure that you are using the latest version.
* Determine if your bug is really a bug and not an error on your side e.g. using incompatible environment components/versions (Make sure that you have read the [documentation](https://a51.gitbook.io/memorio/). If you are looking for support, you might want to check [this section](contributing.md#i-have-a-question)).
* To see if other users have experienced (and potentially already solved) the same issue you are having, check if there is not already a bug report existing for your bug or error in the [bug tracker](https://github.com/a51-dev/a51.memorio/issues?q=label%3Abug).
* Also make sure to search the internet (including Stack Overflow) to see if users outside of the GitHub community have discussed the issue.
* Collect information about the bug:
* Stack trace (Traceback)
* OS, Platform and Version (Windows, Linux, macOS, x86, ARM)
* Version of the interpreter, compiler, SDK, runtime environment, package manager, depending on what seems relevant.
* Possibly your input and the output
* Can you reliably reproduce the issue? And can you also reproduce it with older versions?
#### How Do I Submit a Good Bug Report?
> You must never report security related issues, vulnerabilities or bugs including sensitive information to the issue tracker, or elsewhere in public. Instead sensitive bugs must be sent by email to [dariopassariello@gmail.com](mailto:dariopassariello@gmail.com).
We use GitHub issues to track bugs and errors. If you run into an issue with the project:
* Open an [Issue](https://github.com/a51-dev/a51.memorio/issues/new). (Since we can't be sure at this point whether it is a bug or not, we ask you not to talk about a bug yet and not to label the issue.)
* Explain the behavior you would expect and the actual behavior.
* Please provide as much context as possible and describe the _reproduction steps_ that someone else can follow to recreate the issue on their own. This usually includes your code. For good bug reports you should isolate the problem and create a reduced test case.
* Provide the information you collected in the previous section.
Once it's filed:
* The project team will label the issue accordingly.
* A team member will try to reproduce the issue with your provided steps. If there are no reproduction steps or no obvious way to reproduce the issue, the team will ask you for those steps and mark the issue as `needs-repro`. Bugs with the `needs-repro` tag will not be addressed until they are reproduced.
* If the team is able to reproduce the issue, it will be marked `needs-fix`, as well as possibly other tags (such as `critical`), and the issue will be left to be [implemented by someone](contributing.md#your-first-code-contribution).
### Suggesting Enhancements
This section guides you through submitting an enhancement suggestion for memorio, **including completely new features and minor improvements to existing functionality**. Following these guidelines will help maintainers and the community to understand your suggestion and find related suggestions.
#### Before Submitting an Enhancement
* Make sure that you are using the latest version.
* Read the [documentation](https://a51.gitbook.io/memorio/) carefully and find out if the functionality is already covered, maybe by an individual configuration.
* Perform a [search](https://github.com/a51-dev/a51.memorio/issues) to see if the enhancement has already been suggested. If it has, add a comment to the existing issue instead of opening a new one.
* Find out whether your idea fits with the scope and aims of the project. It's up to you to make a strong case to convince the project's developers of the merits of this feature. Keep in mind that we want features that will be useful to the majority of our users and not just a small subset. If you're just targeting a minority of users, consider writing an add-on/plugin library.
#### How Do I Submit a Good Enhancement Suggestion?
Enhancement suggestions are tracked as [GitHub issues](https://github.com/a51-dev/a51.memorio/issues).
* Use a **clear and descriptive title** for the issue to identify the suggestion.
* Provide a **step-by-step description of the suggested enhancement** in as many details as possible.
* **Describe the current behavior** and **explain which behavior you expected to see instead** and why. At this point you can also tell which alternatives do not work for you.
* You may want to **include screenshots or screen recordings** which help you demonstrate the steps or point out the part which the suggestion is related to. You can use [screentogif](https://www.screentogif.com/) to record GIFs on macOS and Windows, and the built-in [screen recorder in GNOME](https://help.gnome.org/users/gnome-help/stable/screen-shot-record.html.en) or [SimpleScreenRecorder](https://github.com/MaartenBaert/ssr) on Linux.
* **Explain why this enhancement would be useful** to most boilerplate users. You may also want to point out the other projects that solved it better and which could serve as inspiration.
## Join The Project Team
Please send email to <dariopassariello@gmail.com>
# Copyright
Copyright (c) 2025, Dario Passariello. All rights reserved.
<https://dario.passariello.ca>
This software is provided "as is", without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose and noninfringement. In no event shall the authors or copyright holders be liable for any claim, damages or other liability, whether in an action of contract, tort or otherwise, arising from, out of or in connection with the software or the use or other dealings in the software.
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Use state.${key}.unlock() to enable modifications.`);return false}try{const path=globalThis.memorio.objPath?.(key,tree)??key;callback({action:"set",path,target,newValue:value,previousValue:Reflect.get(target,key)});event("state."+path);Reflect.set(target,key,value);if(target[key]&&typeof target[key]==="object"){const rawValue=target[key];if(rawValue&&typeof rawValue==="object"){try{Object.defineProperty(rawValue,"__locked",{writable:true,enumerable:false,configurable:false,value:false});Object.defineProperty(rawValue,"lock",{writable:false,enumerable:false,configurable:false,value:()=>{Object.defineProperty(rawValue,"__locked",{writable:true,enumerable:false,configurable:false,value:true});console.info(`State '${key}' is now locked.`);}});Object.defineProperty(rawValue,"unlock",{writable:false,enumerable:false,configurable:false,value:()=>{Object.defineProperty(rawValue,"__locked",{writable:true,enumerable:false,configurable:false,value:false});console.info(`State '${key}' is now unlocked.`);}});}catch(defineError){}}}return true}catch(error){console.error("Error in set trap:",error);return false}},deleteProperty(target,prop){try{const path=globalThis.memorio.objPath?.(prop,tree);callback({action:"delete",path,target});return Reflect.deleteProperty(target,prop)}catch(error){console.error("Error in deleteProperty trap:",error);return false}},ownKeys(target){return Reflect.ownKeys(target)},getOwnPropertyDescriptor(target,prop){return Reflect.getOwnPropertyDescriptor(target,prop)}})};!globalThis?.state?globalThis.state=buildProxy({},()=>{}):globalThis.state=state;globalThis.state.lock=()=>{globalThis.memorio._locked=true;console.info("State is now locked. All modifications are blocked.");};globalThis.state.unlock=()=>{globalThis.memorio._locked=false;console.info("State is now unlocked. Modifications are allowed.");};Object.defineProperty(globalThis,"state",{enumerable:false,configurable:true});if(!globalThis.observer){globalThis.observer=null;}Object.defineProperty(globalThis,"observer",{enumerable:false,configurable:true});var observerFunction=(s,cb=null,option=true)=>{console.warn('DEPRECATED: "observer" is deprecated and will be removed in future versions. Please use "useObserver" instead.');try{const checkStateOrStore=s2=>{const t=s2.split(".");if(t[0]!=="state"){console.error(`Observer Error: You need to declare 'state.' or 'store.'. The '${s2}' string is incorrect!`);return false}return true};if(!checkStateOrStore(s))return}catch(error){console.error(error);return}if(!s&&!cb){console.error("Observer Error: You need to setup observer correctly, Some parameters are missed!");return}if(!s&&cb){console.error(`Observer Error: You need to declare what state need to be monitored as string like 'state.test'.`);return}if(s&&!cb){const f=({detail:{name:String(s)}});const obs=globalThis.observer;if(obs?.list?.[s])globalThis.memorio.dispatch.remove(f);if(!obs?.list?.[s])globalThis.memorio.dispatch.listen(f);console.debug("called: ",s);return}if(s&&cb){if(typeof s!=="string"||typeof cb!=="function"){console.error(`Observer Error: name of state need to be a 'string' like 'state.test' and the callback need to be a 'function'`);return}const obs=globalThis.observer;if(obs?.list?.[s])globalThis.memorio.dispatch.remove(s,cb,option);if(!obs?.list?.[s])globalThis.memorio.dispatch.listen(s,cb,option);return}};globalThis.observer=observerFunction;Object.defineProperties(globalThis.observer,{list:{get:()=>globalThis.events},remove:{value:name=>{if(!name)return;globalThis.memorio.dispatch.remove(name);delete globalThis.events[name];return}},removeAll:{get:()=>{const obs=globalThis.observer;const list=obs?.list;if(list){Object.keys(list).forEach(key=>{obs?.remove?.(key);});}return true}}});Object.freeze(observer);if(!globalThis.useObserver)globalThis.useObserver=null;Object.defineProperty(globalThis,"useObserver",{value:null,writable:true,enumerable:false,configurable:true});globalThis.useObserver=((func,deps)=>{if(!deps||typeof func!=="function"){return ()=>{}}const handlers=[];const depList=Array.isArray(deps)&&!deps.__path?deps:[deps];try{depList.forEach(dep=>{let t="";if(typeof dep==="function"){const propName=globalThis.memorio.propertyName;if(typeof propName==="function"){const result=propName(globalThis.state,dep);if(result)t=result;}}else if(typeof dep==="object"&&dep!==null){t=dep.__path||(typeof dep.toString==="function"&&dep.toString()!=="[object Object]"?dep.toString():"");}else if(typeof dep==="string"&&(dep.startsWith("state.")||dep.startsWith("store."))){t=dep;}if(t){t=t.replace(/^(\(\)\s*=>\s*)/,"").replace(/^globalThis\./,"").replace(/^state\./,"");const path=t.startsWith("store.")||t.startsWith("state.")?t:"state."+t;globalThis.memorio.dispatch.listen(path,()=>func());handlers.push(path);}else {globalThis.memorio._trackedPaths?.clear();globalThis.memorio._tracking=true;try{func();}catch(e){}globalThis.memorio._tracking=false;globalThis.memorio._trackedPaths?.forEach(path=>{if(!handlers.includes(path)){console.info(`useObserver: [Auto-Discovery] -> "${path}"`);globalThis.memorio.dispatch.listen(path,()=>func());handlers.push(path);}});}});if(handlers.length>0){console.info(`useObserver: Monitoring ${handlers.length} paths.`);}else {console.warn(`useObserver: No paths resolved for monitoring. Check your dependencies!`);}return ()=>{handlers.forEach(path=>{if(globalThis.memorio.dispatch&&typeof globalThis.memorio.dispatch.remove==="function"){globalThis.memorio.dispatch.remove(path);console.debug(`useObserver: Stopped monitoring "${path}"`);}});}}catch(err){console.debug("useObserver Error:",err);return ()=>{}}});Object.freeze(globalThis.useObserver);Object.defineProperty(globalThis,"store",{value:new Proxy({},{}),enumerable:false,configurable:true});Object.defineProperties(store,{get:{value:name=>{if(!name)return;try{const item=globalThis.localStorage.getItem(name);if(item)return JSON.parse(item);return item}catch(err){console.debug(`Error parsing store item '${name}':`,err);}return null}},set:{value:(name,value)=>{if(!name)return;try{if(value===null||value===void 0)globalThis.localStorage.setItem(name,JSON.stringify(null));else if(typeof value==="object"||typeof value==="number"||typeof value==="boolean"||typeof value==="string")globalThis.localStorage.setItem(name,JSON.stringify(value));else if(typeof value==="function")console.debug("It's not secure to store functions.");}catch(err){console.debug(`Error setting store item '${name}':`,err);}return null}},remove:{value:name=>{if(!name)return;if(globalThis.localStorage.getItem(name)){globalThis.localStorage.removeItem(name);return true}return false}},delete:{value:name=>{store.remove(name);return true}},removeAll:{value:()=>{globalThis.localStorage.clear();return true}},clearAll:{value:()=>{store.removeAll();return true}},quota:{value:async()=>{if(globalThis.navigator&&"storage"in globalThis.navigator&&"estimate"in globalThis.navigator.storage){return globalThis.navigator.storage.estimate().then(({usage,quota})=>{const u=usage??0;const q=quota??0;if(u&&q)console.debug(`Using ${u/1024} out of ${q/1024} Mb.`);return [u/1024,q/1024]}).catch(err=>{console.debug("Error estimating quota:",err);return [0,0]})}return [0,0]}},size:{value:()=>{let totalSize=0;Object.keys(globalThis.localStorage).forEach(key=>{const item=globalThis.localStorage.getItem(key);if(item)totalSize+=item.length;});return totalSize}}});Object.freeze(store);Object.defineProperty(globalThis,"session",{value:new Proxy({},{}),enumerable:false,configurable:true});Object.defineProperties(session,{get:{value:name=>{if(!name)return;try{const item=globalThis.sessionStorage.getItem(name);if(item)return JSON.parse(item);return item}catch(err){console.debug(`Error parsing session item '${name}':`,err);}return}},set:{value:(name,value)=>{if(!name)return;try{if(value===null||value===void 0)globalThis.sessionStorage.setItem(name,JSON.stringify(null));else if(typeof value==="object"||typeof value==="number"||typeof value==="boolean"||typeof value==="string")globalThis.sessionStorage.setItem(name,JSON.stringify(value));else if(typeof value==="function")console.debug("It's not secure to session functions.");}catch(err){console.debug(`Error setting session item '${name}':`,err);}return}},remove:{value:name=>{if(!name)return;if(globalThis.sessionStorage.getItem(name)){globalThis.sessionStorage.removeItem(name);return true}return}},delete:{value:name=>{session.remove(name);return true}},removeAll:{value:()=>{globalThis.sessionStorage.clear();return true}},clearAll:{value:()=>{session.removeAll();return true}},quota:{value:async()=>{if(globalThis.navigator&&"storage"in globalThis.navigator&&"estimate"in globalThis.navigator.storage){return globalThis.navigator.storage.estimate().then(({usage,quota})=>{const u=usage??0;const q=quota??0;if(u&&q)console.debug(`Using ${u/1024} out of ${q/1024} Mb.`);return [u/1024,q/1024]}).catch(err=>{console.debug("Error estimating quota:",err);return [0,0]})}return [0,0]}},size:{value:()=>{let totalSize=0;Object.keys(globalThis.sessionStorage).forEach(key=>{const item=globalThis.sessionStorage.getItem(key);if(item)totalSize+=item.length;});return totalSize}}});Object.freeze(session);var cacheData={};Object.defineProperty(globalThis,"cache",{value:new Proxy({},{get(target,prop){const key=prop;if(key==="get")return name=>cacheData[name];if(key==="set")return (name,value)=>{cacheData[name]=value;};if(key==="remove")return name=>{delete cacheData[name];return true};if(key==="removeAll")return ()=>{Object.keys(cacheData).forEach(k=>delete cacheData[k]);return true};if(key==="clear")return ()=>{Object.keys(cacheData).forEach(k=>delete cacheData[k]);return true};return cacheData[key]},set(target,prop,value){cacheData[prop]=value;return true},deleteProperty(target,prop){delete cacheData[prop];return true}}),enumerable:false,configurable:true});Object.freeze(cache);(async()=>{Object.defineProperty(globalThis,"idb",{value:{db:{},table:{},data:{}},writable:true,configurable:true,enumerable:false});Object.defineProperty(globalThis,"idbases",{value:[],writable:true,configurable:true,enumerable:false});await Promise.all([Promise.resolve().then(()=>(init_db_create(),db_create_exports)),Promise.resolve().then(()=>(init_db_list(),db_list_exports)),Promise.resolve().then(()=>(init_db_exist(),db_exist_exports)),Promise.resolve().then(()=>(init_db_quota(),db_quota_exports)),Promise.resolve().then(()=>(init_db_delete(),db_delete_exports)),Promise.resolve().then(()=>(init_db_size(),db_size_exports)),Promise.resolve().then(()=>(init_db_version(),db_version_exports)),Promise.resolve().then(()=>(init_db_support(),db_support_exports)),Promise.resolve().then(()=>(init_table_create(),table_create_exports)),Promise.resolve().then(()=>(init_table_size(),table_size_exports)),Promise.resolve().then(()=>(init_data_delete(),data_delete_exports)),Promise.resolve().then(()=>(init_data_set(),data_set_exports)),Promise.resolve().then(()=>(init_data_get(),data_get_exports))]);Object.preventExtensions(idb);Object.seal(idb);Object.freeze(idb);})();
# Security
Please email [@passariello](https://github.com/passariello) or see https://dario.passariello.ca/contact/ if you have a potential security vulnerability to report.
+1
-1

@@ -1,1 +0,1 @@

var l=(e,r)=>()=>(e&&(r=e(e=0)),r);var p,h=l(()=>{p={name:"memorio",version:"2.5.3",type:"module",private:!1,main:"index.js",license:"MIT",typings:"./types/*",description:"Memorio, State + Observer and Store for an easy life",copyright:"Copyright (c) 2025 Dario Passariello",homepage:"https://a51.gitbook.io/memorio",author:{name:"Dario Passariello",url:"https://dario.passariello.ca/",email:"dariopassariello@gmail.com"},support:{name:"Dario Passariello",url:"https://github.com/passariello/",email:"dariopassariello@gmail.com"},contributors:[{name:"Dario Passariello",email:"dariopassarielloa@gmail.com"},{name:"Valeria Cala Scaglitta",email:"valeriacalascaglitta@gmail.com"}],keywords:["biglogic","a51","memorio","state","store","observer","useObserver","dario","passariello"],funding:[{type:"patreon",url:"https://www.patreon.com/passariello"}],typing:["types/*"],exports:{".":{types:"./types/index.d.ts",import:"./index.js",default:"./index.js"},"./types/*":"./types/*"},scripts:{build:"rimraf dist && node ./esbuild.config.mjs",watch:'rimraf dist && nodemon --watch * --exec "npm run build "',"npm:publish":"npm run build && npm publish ./dist",test:"cd tests && npm run test",lint:"cd tests && npm run lint",tsc:"tsc --noEmit"},devDependencies:{"@types/node":"25.3.3",esbuild:"0.27.3","esbuild-node-externals":"1.20.1","esbuild-plugin-alias":"0.2.1","esbuild-plugin-copy":"2.1.1",rimraf:"6.1.3",typescript:"5.9.3"}}});var y,m=l(()=>{"use strict";a();h();Object.defineProperty(globalThis,"memorio",{value:{},writable:!1,configurable:!0,enumerable:!1});Object.defineProperty(globalThis,"events",{value:{},writable:!0,enumerable:!1});Object.defineProperty(memorio,"version",{writable:!1,enumerable:!1,value:p.version});y=["list","state","store","idb","observer","useObserver","remove","removeAll"]});var v=l(()=>{"use strict";a();Object.defineProperty(memorio,"dispatch",{writable:!1,enumerable:!1,value:{set:(e,r={})=>{globalThis.dispatchEvent(new CustomEvent(String(e),r))},listen:(e,r=null,o=!1)=>{globalThis.observer?.list?.[e]?.length>0&&globalThis.observer?.remove?.(e);let i=r?t=>setTimeout(()=>r(t),1):void 0;i&&globalThis.addEventListener(e,i),i&&(globalThis.events[e]=i)},remove:e=>{let r=globalThis.events?.[e];r&&(globalThis.removeEventListener(e,r),delete globalThis.events[e])}}})});var T=l(()=>{"use strict";a();memorio.propertyName=(e,r)=>String(r).replace("() => ","")});var P,O=l(()=>{"use strict";a();m();Object.defineProperty(memorio,"objPath",{writable:!1,enumerable:!1,value:(e,r,o=".")=>{let i=r.concat(e).join(o);return globalThis.memorio._tracking&&globalThis.memorio._trackedPaths?.add("state."+i),i}});globalThis.memorio._tracking=!1;globalThis.memorio._trackedPaths=new Set;globalThis.memorio._locked=!1;P=(e,r,o=[])=>{let i=t=>{try{globalThis.memorio?.dispatch?.set?.(t,{detail:{name:t}})}catch{}};return new Proxy(e,{get(t,s){if(s==="__path")return o.length>0?"state."+o.join("."):"state";if(s==="list")return console.debug('Some state could be hidden when you use "state.list". Use "state" to see the complete list '),JSON.parse(JSON.stringify(globalThis.state));if(globalThis.memorio._tracking&&typeof s=="string"){let n=o.length>0?"state."+o.concat(s).join("."):"state."+s;globalThis.memorio._trackedPaths?.add(n)}if(s==="remove")return n=>(delete t[n],!0);if(s==="removeAll")return()=>{try{for(let n in t)typeof t[n]!="function"&&!["list","remove","removeAll"].includes(n)&&(Object.isFrozen(t[n])||delete t[n],delete t[n])}catch(n){console.debug(n)}};if(Object.isFrozen(t[s]))return t[s];if(s==="lock"||s==="unlock"){let n=Reflect.get(t,s);if(n)return n}try{let n=Reflect.get(t,s);return n&&typeof n=="object"&&["Array","Object"].includes(n.constructor.name)?P(n,r,o.concat(s)):n}catch(n){console.error("Error: ",n);return}},set(t,s,n){if(globalThis.memorio._locked)return console.error("Error: state is locked. Use state.unlock() to enable modifications."),!1;if(y.includes(s))return console.error("key "+s+" is protected"),!1;if(t[s]&&typeof t[s]=="object"&&Object.isFrozen(t[s]))return console.error(`Error: state '${s}' is locked`),!1;if(t[s]&&typeof t[s]=="object"&&t[s].__locked)return console.error(`Error: state '${s}' is locked. Use state.${s}.unlock() to enable modifications.`),!1;try{let u=globalThis.memorio.objPath?.(s,o)??s;if(r({action:"set",path:u,target:t,newValue:n,previousValue:Reflect.get(t,s)}),i("state."+u),Reflect.set(t,s,n),t[s]&&typeof t[s]=="object"){let b=t[s];if(b&&typeof b=="object")try{Object.defineProperty(b,"__locked",{writable:!0,enumerable:!1,configurable:!1,value:!1}),Object.defineProperty(b,"lock",{writable:!1,enumerable:!1,configurable:!1,value:()=>{Object.defineProperty(b,"__locked",{writable:!0,enumerable:!1,configurable:!1,value:!0}),console.info(`State '${s}' is now locked.`)}}),Object.defineProperty(b,"unlock",{writable:!1,enumerable:!1,configurable:!1,value:()=>{Object.defineProperty(b,"__locked",{writable:!0,enumerable:!1,configurable:!1,value:!1}),console.info(`State '${s}' is now unlocked.`)}})}catch{}}return!0}catch(u){return console.error("Error in set trap:",u),!1}},deleteProperty(t,s){try{let n=globalThis.memorio.objPath?.(s,o);return r({action:"delete",path:n,target:t}),Reflect.deleteProperty(t,s)}catch(n){return console.error("Error in deleteProperty trap:",n),!1}},ownKeys(t){return Reflect.ownKeys(t)},getOwnPropertyDescriptor(t,s){return Reflect.getOwnPropertyDescriptor(t,s)}})};globalThis?.state?globalThis.state=state:globalThis.state=P({},()=>{});globalThis.state.lock=()=>{globalThis.memorio._locked=!0,console.info("State is now locked. All modifications are blocked.")};globalThis.state.unlock=()=>{globalThis.memorio._locked=!1,console.info("State is now unlocked. Modifications are allowed.")};Object.defineProperty(globalThis,"state",{enumerable:!1,configurable:!0})});var F,S=l(()=>{"use strict";a();globalThis.observer||(globalThis.observer=null);Object.defineProperty(globalThis,"observer",{enumerable:!1,configurable:!0});F=(e,r=null,o=!0)=>{console.warn('DEPRECATED: "observer" is deprecated and will be removed in future versions. Please use "useObserver" instead.');try{if(!(t=>t.split(".")[0]!=="state"?(console.error(`Observer Error: You need to declare 'state.' or 'store.'. The '${t}' string is incorrect!`),!1):!0)(e))return}catch(i){console.error(i);return}if(!e&&!r){console.error("Observer Error: You need to setup observer correctly, Some parameters are missed!");return}if(!e&&r){console.error("Observer Error: You need to declare what state need to be monitored as string like 'state.test'.");return}if(e&&!r){let i=(String(e),{detail:{name:String(e)}}),t=globalThis.observer;t?.list?.[e]&&globalThis.memorio.dispatch.remove(i),t?.list?.[e]||globalThis.memorio.dispatch.listen(i),console.debug("called: ",e);return}if(e&&r){if(typeof e!="string"||typeof r!="function"){console.error("Observer Error: name of state need to be a 'string' like 'state.test' and the callback need to be a 'function'");return}let i=globalThis.observer;i?.list?.[e]&&globalThis.memorio.dispatch.remove(e,r,o),i?.list?.[e]||globalThis.memorio.dispatch.listen(e,r,o);return}};globalThis.observer=F;Object.defineProperties(globalThis.observer,{list:{get:()=>globalThis.events},remove:{value:e=>{e&&(globalThis.memorio.dispatch.remove(e),delete globalThis.events[e])}},removeAll:{get:()=>{let e=globalThis.observer,r=e?.list;return r&&Object.keys(r).forEach(o=>{e?.remove?.(o)}),!0}}});Object.freeze(observer)});var w=l(()=>{"use strict";a();globalThis.useObserver||(globalThis.useObserver=null);Object.defineProperty(globalThis,"useObserver",{value:null,writable:!0,enumerable:!1,configurable:!0});globalThis.useObserver=((e,r)=>{if(!r||typeof e!="function")return()=>{};let o=[],i=Array.isArray(r)&&!r.__path?r:[r];try{return i.forEach(t=>{let s="";if(typeof t=="function"){let n=globalThis.memorio.propertyName;if(typeof n=="function"){let u=n(globalThis.state,t);u&&(s=u)}}else typeof t=="object"&&t!==null?s=t.__path||(typeof t.toString=="function"&&t.toString()!=="[object Object]"?t.toString():""):typeof t=="string"&&(t.startsWith("state.")||t.startsWith("store."))&&(s=t);if(s){s=s.replace(/^(\(\)\s*=>\s*)/,"").replace(/^globalThis\./,"").replace(/^state\./,"");let n=s.startsWith("store.")||s.startsWith("state.")?s:"state."+s;globalThis.memorio.dispatch.listen(n,()=>e()),o.push(n)}else{globalThis.memorio._trackedPaths?.clear(),globalThis.memorio._tracking=!0;try{e()}catch{}globalThis.memorio._tracking=!1,globalThis.memorio._trackedPaths?.forEach(n=>{o.includes(n)||(console.info(`useObserver: [Auto-Discovery] -> "${n}"`),globalThis.memorio.dispatch.listen(n,()=>e()),o.push(n))})}}),o.length>0?console.info(`useObserver: Monitoring ${o.length} paths.`):console.warn("useObserver: No paths resolved for monitoring. Check your dependencies!"),()=>{o.forEach(t=>{globalThis.memorio.dispatch&&typeof globalThis.memorio.dispatch.remove=="function"&&(globalThis.memorio.dispatch.remove(t),console.debug(`useObserver: Stopped monitoring "${t}"`))})}}catch(t){return console.debug("useObserver Error:",t),()=>{}}});Object.freeze(globalThis.useObserver)});var j=l(()=>{"use strict";a();Object.defineProperty(globalThis,"store",{value:new Proxy({},{}),enumerable:!1,configurable:!0});Object.defineProperties(store,{get:{value:e=>{if(e){try{let r=globalThis.localStorage.getItem(e);return r&&JSON.parse(r)}catch(r){console.debug(`Error parsing store item '${e}':`,r)}return null}}},set:{value:(e,r)=>{if(e){try{r==null?globalThis.localStorage.setItem(e,JSON.stringify(null)):typeof r=="object"||typeof r=="number"||typeof r=="boolean"||typeof r=="string"?globalThis.localStorage.setItem(e,JSON.stringify(r)):typeof r=="function"&&console.debug("It's not secure to store functions.")}catch(o){console.debug(`Error setting store item '${e}':`,o)}return null}}},remove:{value:e=>{if(e)return globalThis.localStorage.getItem(e)?(globalThis.localStorage.removeItem(e),!0):!1}},delete:{value:e=>(store.remove(e),!0)},removeAll:{value:()=>(globalThis.localStorage.clear(),!0)},clearAll:{value:()=>(store.removeAll(),!0)},quota:{value:async()=>globalThis.navigator&&"storage"in globalThis.navigator&&"estimate"in globalThis.navigator.storage?globalThis.navigator.storage.estimate().then(({usage:e,quota:r})=>{let o=e??0,i=r??0;return o&&i&&console.debug(`Using ${o/1024} out of ${i/1024} Mb.`),[o/1024,i/1024]}).catch(e=>(console.debug("Error estimating quota:",e),[0,0])):[0,0]},size:{value:()=>{let e=0;return Object.keys(globalThis.localStorage).forEach(r=>{let o=globalThis.localStorage.getItem(r);o&&(e+=o.length)}),e}}});Object.freeze(store)});var x=l(()=>{"use strict";a();Object.defineProperty(globalThis,"session",{value:new 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globalThis.navigator.storage?globalThis.navigator.storage.estimate().then(({usage:e,quota:r})=>{let o=e??0,i=r??0;return o&&i&&console.debug(`Using ${o/1024} out of ${i/1024} Mb.`),[o/1024,i/1024]}).catch(e=>(console.debug("Error estimating quota:",e),[0,0])):[0,0]},size:{value:()=>{let e=0;return Object.keys(globalThis.sessionStorage).forEach(r=>{let o=globalThis.sessionStorage.getItem(r);o&&(e+=o.length)}),e}}});Object.freeze(session)});var d,E=l(()=>{"use strict";a();d={};Object.defineProperty(globalThis,"cache",{value:new Proxy({},{get(e,r){let o=r;return o==="get"?i=>d[i]:o==="set"?(i,t)=>{d[i]=t}:o==="remove"?i=>(delete d[i],!0):o==="removeAll"?()=>(Object.keys(d).forEach(i=>delete d[i]),!0):o==="clear"?()=>(Object.keys(d).forEach(i=>delete d[i]),!0):d[o]},set(e,r,o){return d[r]=o,!0},deleteProperty(e,r){return delete d[r],!0}}),enumerable:!1,configurable:!0});Object.freeze(cache)});var U={};var D=l(()=>{"use strict";a();idb.db.create=(e,r=1)=>new 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Use state.${key}.unlock() to enable modifications.`);return false}try{const path=globalThis.memorio.objPath?.(key,tree)??key;callback({action:"set",path,target,newValue:value,previousValue:Reflect.get(target,key)});event("state."+path);Reflect.set(target,key,value);if(target[key]&&typeof target[key]==="object"){const rawValue=target[key];if(rawValue&&typeof rawValue==="object"){try{Object.defineProperty(rawValue,"__locked",{writable:true,enumerable:false,configurable:false,value:false});Object.defineProperty(rawValue,"lock",{writable:false,enumerable:false,configurable:false,value:()=>{Object.defineProperty(rawValue,"__locked",{writable:true,enumerable:false,configurable:false,value:true});console.info(`State '${key}' is now locked.`);}});Object.defineProperty(rawValue,"unlock",{writable:false,enumerable:false,configurable:false,value:()=>{Object.defineProperty(rawValue,"__locked",{writable:true,enumerable:false,configurable:false,value:false});console.info(`State '${key}' is now unlocked.`);}});}catch(defineError){}}}return true}catch(error){console.error("Error in set trap:",error);return false}},deleteProperty(target,prop){try{const path=globalThis.memorio.objPath?.(prop,tree);callback({action:"delete",path,target});return Reflect.deleteProperty(target,prop)}catch(error){console.error("Error in deleteProperty trap:",error);return false}},ownKeys(target){return Reflect.ownKeys(target)},getOwnPropertyDescriptor(target,prop){return Reflect.getOwnPropertyDescriptor(target,prop)}})};!globalThis?.state?globalThis.state=buildProxy({},()=>{}):globalThis.state=state;globalThis.state.lock=()=>{globalThis.memorio._locked=true;console.info("State is now locked. All modifications are blocked.");};globalThis.state.unlock=()=>{globalThis.memorio._locked=false;console.info("State is now unlocked. Modifications are allowed.");};Object.defineProperty(globalThis,"state",{enumerable:false,configurable:true});if(!globalThis.observer){globalThis.observer=null;}Object.defineProperty(globalThis,"observer",{enumerable:false,configurable:true});var observerFunction=(s,cb=null,option=true)=>{console.warn('DEPRECATED: "observer" is deprecated and will be removed in future versions. Please use "useObserver" instead.');try{const checkStateOrStore=s2=>{const t=s2.split(".");if(t[0]!=="state"){console.error(`Observer Error: You need to declare 'state.' or 'store.'. The '${s2}' string is incorrect!`);return false}return true};if(!checkStateOrStore(s))return}catch(error){console.error(error);return}if(!s&&!cb){console.error("Observer Error: You need to setup observer correctly, Some parameters are missed!");return}if(!s&&cb){console.error(`Observer Error: You need to declare what state need to be monitored as string like 'state.test'.`);return}if(s&&!cb){const f=({detail:{name:String(s)}});const obs=globalThis.observer;if(obs?.list?.[s])globalThis.memorio.dispatch.remove(f);if(!obs?.list?.[s])globalThis.memorio.dispatch.listen(f);console.debug("called: ",s);return}if(s&&cb){if(typeof s!=="string"||typeof cb!=="function"){console.error(`Observer Error: name of state need to be a 'string' like 'state.test' and the callback need to be a 'function'`);return}const obs=globalThis.observer;if(obs?.list?.[s])globalThis.memorio.dispatch.remove(s,cb,option);if(!obs?.list?.[s])globalThis.memorio.dispatch.listen(s,cb,option);return}};globalThis.observer=observerFunction;Object.defineProperties(globalThis.observer,{list:{get:()=>globalThis.events},remove:{value:name=>{if(!name)return;globalThis.memorio.dispatch.remove(name);delete globalThis.events[name];return}},removeAll:{get:()=>{const obs=globalThis.observer;const list=obs?.list;if(list){Object.keys(list).forEach(key=>{obs?.remove?.(key);});}return true}}});Object.freeze(observer);if(!globalThis.useObserver)globalThis.useObserver=null;Object.defineProperty(globalThis,"useObserver",{value:null,writable:true,enumerable:false,configurable:true});globalThis.useObserver=((func,deps)=>{if(!deps||typeof func!=="function"){return ()=>{}}const handlers=[];const depList=Array.isArray(deps)&&!deps.__path?deps:[deps];try{depList.forEach(dep=>{let t="";if(typeof dep==="function"){const propName=globalThis.memorio.propertyName;if(typeof propName==="function"){const result=propName(globalThis.state,dep);if(result)t=result;}}else if(typeof dep==="object"&&dep!==null){t=dep.__path||(typeof dep.toString==="function"&&dep.toString()!=="[object Object]"?dep.toString():"");}else if(typeof dep==="string"&&(dep.startsWith("state.")||dep.startsWith("store."))){t=dep;}if(t){t=t.replace(/^(\(\)\s*=>\s*)/,"").replace(/^globalThis\./,"").replace(/^state\./,"");const path=t.startsWith("store.")||t.startsWith("state.")?t:"state."+t;globalThis.memorio.dispatch.listen(path,()=>func());handlers.push(path);}else {globalThis.memorio._trackedPaths?.clear();globalThis.memorio._tracking=true;try{func();}catch(e){}globalThis.memorio._tracking=false;globalThis.memorio._trackedPaths?.forEach(path=>{if(!handlers.includes(path)){console.info(`useObserver: [Auto-Discovery] -> "${path}"`);globalThis.memorio.dispatch.listen(path,()=>func());handlers.push(path);}});}});if(handlers.length>0){console.info(`useObserver: Monitoring ${handlers.length} paths.`);}else {console.warn(`useObserver: No paths resolved for monitoring. Check your dependencies!`);}return ()=>{handlers.forEach(path=>{if(globalThis.memorio.dispatch&&typeof globalThis.memorio.dispatch.remove==="function"){globalThis.memorio.dispatch.remove(path);console.debug(`useObserver: Stopped monitoring "${path}"`);}});}}catch(err){console.debug("useObserver Error:",err);return ()=>{}}});Object.freeze(globalThis.useObserver);Object.defineProperty(globalThis,"store",{value:new Proxy({},{}),enumerable:false,configurable:true});Object.defineProperties(store,{get:{value:name=>{if(!name)return;try{const item=globalThis.localStorage.getItem(name);if(item)return JSON.parse(item);return item}catch(err){console.debug(`Error parsing store item '${name}':`,err);}return null}},set:{value:(name,value)=>{if(!name)return;try{if(value===null||value===void 0)globalThis.localStorage.setItem(name,JSON.stringify(null));else if(typeof value==="object"||typeof value==="number"||typeof value==="boolean"||typeof value==="string")globalThis.localStorage.setItem(name,JSON.stringify(value));else if(typeof value==="function")console.debug("It's not secure to store functions.");}catch(err){console.debug(`Error setting store item '${name}':`,err);}return null}},remove:{value:name=>{if(!name)return;if(globalThis.localStorage.getItem(name)){globalThis.localStorage.removeItem(name);return true}return false}},delete:{value:name=>{store.remove(name);return true}},removeAll:{value:()=>{globalThis.localStorage.clear();return true}},clearAll:{value:()=>{store.removeAll();return true}},quota:{value:async()=>{if(globalThis.navigator&&"storage"in globalThis.navigator&&"estimate"in globalThis.navigator.storage){return globalThis.navigator.storage.estimate().then(({usage,quota})=>{const u=usage??0;const q=quota??0;if(u&&q)console.debug(`Using ${u/1024} out of ${q/1024} Mb.`);return [u/1024,q/1024]}).catch(err=>{console.debug("Error estimating quota:",err);return [0,0]})}return [0,0]}},size:{value:()=>{let totalSize=0;Object.keys(globalThis.localStorage).forEach(key=>{const item=globalThis.localStorage.getItem(key);if(item)totalSize+=item.length;});return totalSize}}});Object.freeze(store);Object.defineProperty(globalThis,"session",{value:new Proxy({},{}),enumerable:false,configurable:true});Object.defineProperties(session,{get:{value:name=>{if(!name)return;try{const item=globalThis.sessionStorage.getItem(name);if(item)return JSON.parse(item);return item}catch(err){console.debug(`Error parsing session item '${name}':`,err);}return}},set:{value:(name,value)=>{if(!name)return;try{if(value===null||value===void 0)globalThis.sessionStorage.setItem(name,JSON.stringify(null));else if(typeof value==="object"||typeof value==="number"||typeof value==="boolean"||typeof value==="string")globalThis.sessionStorage.setItem(name,JSON.stringify(value));else if(typeof value==="function")console.debug("It's not secure to session functions.");}catch(err){console.debug(`Error setting session item '${name}':`,err);}return}},remove:{value:name=>{if(!name)return;if(globalThis.sessionStorage.getItem(name)){globalThis.sessionStorage.removeItem(name);return true}return}},delete:{value:name=>{session.remove(name);return true}},removeAll:{value:()=>{globalThis.sessionStorage.clear();return true}},clearAll:{value:()=>{session.removeAll();return true}},quota:{value:async()=>{if(globalThis.navigator&&"storage"in globalThis.navigator&&"estimate"in globalThis.navigator.storage){return globalThis.navigator.storage.estimate().then(({usage,quota})=>{const u=usage??0;const q=quota??0;if(u&&q)console.debug(`Using ${u/1024} out of ${q/1024} Mb.`);return [u/1024,q/1024]}).catch(err=>{console.debug("Error estimating quota:",err);return [0,0]})}return [0,0]}},size:{value:()=>{let totalSize=0;Object.keys(globalThis.sessionStorage).forEach(key=>{const item=globalThis.sessionStorage.getItem(key);if(item)totalSize+=item.length;});return totalSize}}});Object.freeze(session);var cacheData={};Object.defineProperty(globalThis,"cache",{value:new Proxy({},{get(target,prop){const key=prop;if(key==="get")return name=>cacheData[name];if(key==="set")return (name,value)=>{cacheData[name]=value;};if(key==="remove")return name=>{delete cacheData[name];return true};if(key==="removeAll")return ()=>{Object.keys(cacheData).forEach(k=>delete cacheData[k]);return true};if(key==="clear")return ()=>{Object.keys(cacheData).forEach(k=>delete cacheData[k]);return true};return cacheData[key]},set(target,prop,value){cacheData[prop]=value;return true},deleteProperty(target,prop){delete cacheData[prop];return true}}),enumerable:false,configurable:true});Object.freeze(cache);(async()=>{Object.defineProperty(globalThis,"idb",{value:{db:{},table:{},data:{}},writable:true,configurable:true,enumerable:false});Object.defineProperty(globalThis,"idbases",{value:[],writable:true,configurable:true,enumerable:false});await Promise.all([Promise.resolve().then(()=>(init_db_create(),db_create_exports)),Promise.resolve().then(()=>(init_db_list(),db_list_exports)),Promise.resolve().then(()=>(init_db_exist(),db_exist_exports)),Promise.resolve().then(()=>(init_db_quota(),db_quota_exports)),Promise.resolve().then(()=>(init_db_delete(),db_delete_exports)),Promise.resolve().then(()=>(init_db_size(),db_size_exports)),Promise.resolve().then(()=>(init_db_version(),db_version_exports)),Promise.resolve().then(()=>(init_db_support(),db_support_exports)),Promise.resolve().then(()=>(init_table_create(),table_create_exports)),Promise.resolve().then(()=>(init_table_size(),table_size_exports)),Promise.resolve().then(()=>(init_data_delete(),data_delete_exports)),Promise.resolve().then(()=>(init_data_set(),data_set_exports)),Promise.resolve().then(()=>(init_data_get(),data_get_exports))]);Object.preventExtensions(idb);Object.seal(idb);Object.freeze(idb);})();
{
"name": "memorio",
"version": "2.5.3",
"type": "module",
"private": false,
"main": "index.js",
"version": "2.6.0",
"description": "Memorio, State + Observer, Store and iDB for an easy life",
"main": "./index.cjs",
"browser": "./index.cjs",
"types": "./index.d.ts",
"typing": "./types/*",
"homepage": "https://a51.gitbook.io/memorio",
"license": "MIT",
"typings": "./types/*",
"description": "Memorio, State + Observer and Store for an easy life",
"copyright": "Copyright (c) 2025 Dario Passariello",
"homepage": "https://a51.gitbook.io/memorio",
"author": {
"name": "Dario Passariello",
"url": "https://dario.passariello.ca/",
"email": "dariopassariello@gmail.com"
},
"support": {
"name": "Dario Passariello",
"url": "https://github.com/passariello/",
"email": "dariopassariello@gmail.com"
},
"copyright": "Dario Passariello",
"author": "Dario Passariello",
"contributors": [

@@ -33,11 +24,11 @@ {

"keywords": [
"biglogic",
"a51",
"memorio",
"state",
"store",
"observer",
"useObserver",
"dario",
"passariello"
"elements",
"ui",
"ux",
"inputs",
"buttons",
"frontend",
"gui",
"styles",
"customization"
],

@@ -50,30 +41,41 @@ "funding": [

],
"typing": [
"types/*"
"engines": {
"node": ">=18.0.0"
},
"files": [
"**/*"
],
"repository": {
"type": "git",
"url": "git+https://github.com/a51-dev/a51.memorio.git"
},
"bugs": {
"url": "https://github.com/a51-dev/a51.memorio/issues"
},
"support": {
"name": "Dario Passariello",
"url": "https://dario.passariello.ca/",
"email": "dariopassariello@gmail.com"
},
"peerDependenciesMeta": {
"react": {
"optional": false
},
"react-dom": {
"optional": false
},
"jquery": {
"optional": false
}
},
"module": "./index.js",
"exports": {
".": {
"types": "./types/index.d.ts",
"import": "./index.js",
"default": "./index.js"
"require": "./index.cjs",
"types": "./index.d.ts"
},
"./types/*": "./types/*"
},
"scripts": {
"build": "rimraf dist && node ./esbuild.config.mjs",
"watch": "rimraf dist && nodemon --watch * --exec \"npm run build \"",
"npm:publish": "npm run build && npm publish ./dist",
"test": "cd tests && npm run test",
"lint": "cd tests && npm run lint",
"tsc": "tsc --noEmit"
},
"devDependencies": {
"@types/node": "25.3.3",
"esbuild": "0.27.3",
"esbuild-node-externals": "1.20.1",
"esbuild-plugin-alias": "0.2.1",
"esbuild-plugin-copy": "2.1.1",
"rimraf": "6.1.3",
"typescript": "5.9.3"
}
}
"typings": "./index.d.ts"
}

@@ -6,14 +6,23 @@ # [memorio](https://npmjs.com/package/memorio)

[![version](https://img.shields.io/npm/v/memorio.svg)](https://npmjs.org/package/memorio)
[![install size](https://img.shields.io/badge/dynamic/json?url=https://packagephobia.com/v2/api.json?p=memorio&query=$.install.pretty&label=install%20size&style=flat-square)](https://packagephobia.now.sh/result?p=memorio)
[![downloads](https://img.shields.io/npm/dm/memorio.svg)](https://npmjs.org/package/memorio)
![Snyk](https://img.shields.io/badge/Snyk-gray?logo=Snyk)
[![Known Vulnerabilities](https://snyk.io/test/npm/memorio/badge.svg)](https://snyk.io/test/npm/memorio)
[![Socket Badge](https://socket.dev/api/badge/npm/package/memorio)](https://socket.dev/npm/package/memorio)
![Node.js](https://img.shields.io/badge/Node.js-gray?logo=node.js)
![React](https://img.shields.io/badge/React-gray?logo=React)
![Javascript](https://img.shields.io/badge/Javascript-gray?logo=Javascript)
![TypeScript](https://img.shields.io/badge/TypeScript-gray?logo=typescript)
![Node.js](https://img.shields.io/badge/Node.js-gray?logo=node.js)
![Jest](https://img.shields.io/badge/Jest-gray?logo=jest)
![ESLint](https://img.shields.io/badge/ESLint-gray?logo=eslint)
![esbuild](https://img.shields.io/badge/esbuild-gray?logo=esbuild)
![License](https://img.shields.io/badge/license-MIT-blue.svg)
![Jest](https://img.shields.io/badge/Jest-gray?logo=jest)
![ESLint](https://img.shields.io/badge/Eslint-gray?logo=eslint)
![Playwright](https://img.shields.io/badge/Playwright-gray?logo=playwright)
License is MIT - free to use, modify, and distribute
[![GitBook](https://img.shields.io/static/v1?message=Documented%20on%20GitBook&logo=gitbook&logoColor=ffffff&label=%20&labelColor=5c5c5c&color=3F89A1)](https://a51.gitbook.io/memorio)
---
## Table of Contents

@@ -20,0 +29,0 @@

@@ -64,2 +64,10 @@

interface Window {
[key: string]: any
}
interface globalThis {
[key: string]: any
}
export { }
# Cache - Memorio
Cache provides in-memory storage with a simple API. Data is lost on page refresh.
## Installation
```bash
npm install memorio
```
```javascript
import 'memorio';
```
---
## Quick Examples
### Example 1: Basic Usage
```javascript
// Save data
cache.set('username', 'Mario');
cache.set('score', 1500);
// Read data
console.log(cache.get('username')); // "Mario"
console.log(cache.get('score')); // 1500
```
### Example 2: Intermediate
```javascript
// Store objects
cache.set('user', { name: 'Luigi', level: 5 });
const user = cache.get('user');
console.log(user.name); // "Luigi"
// Remove single item
cache.remove('username');
// Clear all cache
cache.removeAll();
```
---
## API Reference
### Methods
| Method | Parameters | Returns | Description |
|--------|------------|---------|-------------|
| `cache.get(name)` | `name: string` | `any` | Get value from cache |
| `cache.set(name, value)` | `name: string, value: any` | `void` | Save value to cache |
| `cache.remove(name)` | `name: string` | `boolean` | Remove single item |
| `cache.removeAll()` | `none` | `boolean` | Clear all cache |
---
## Storage Comparison
| Feature | Cache | Store | Session | IDB |
|---------|-------|-------|---------|-----|
| Storage | Memory | localStorage | sessionStorage | IndexedDB |
| Lifetime | Until refresh | Forever | Until tab closes | Forever |
| Capacity | Unlimited | ~5-10 MB | ~5-10 MB | 50+ MB |
| Use case | Temporary data | User preferences | Auth tokens | Large data |
---
## Best Practices
1. Use for temporary data that doesn't need persistence
2. Great for computed values or API response caching
3. Data is lost on page refresh - don't use for important data
4. Clear with `cache.removeAll()` when no longer needed
# Memorio DevTools
Browser console debugging tools for inspecting and managing Memorio state.
## Quick Start
```javascript
// Load memorio first
import 'memorio'
```
## Available Methods
### inspect()
Inspect all Memorio modules in the console.
```javascript
memorio.devtools.inspect()
```
### stats()
Get statistics about all modules.
```javascript
memorio.devtools.stats()
// Returns: { stateKeys, storeKeys, sessionKeys, cacheKeys, idbDatabases, lastUpdate }
```
### clear(module)
Clear data from a specific module.
```javascript
memorio.devtools.clear('state')
memorio.devtools.clear('store')
memorio.devtools.clear('session')
memorio.devtools.clear('cache')
```
### clearAll()
Clear all Memorio data.
```javascript
memorio.devtools.clearAll()
```
### watch(module, path)
Watch a specific path for changes.
```javascript
memorio.devtools.watch('state', 'user.name')
```
### exportData()
Export all data as JSON.
```javascript
const json = memorio.devtools.exportData()
console.log(json)
```
### importData(jsonString)
Import data from JSON.
```javascript
memorio.devtools.importData('{"state":{"key":"value"}}')
```
### help()
Show help information.
```javascript
memorio.devtools.help()
```
## Console Shortcuts
Memorio provides global shortcuts for quick access:
```javascript
$state // globalThis.state
$store // globalThis.store
$session // globalThis.session
$cache // globalThis.cache
```
## Examples
### Inspect current state
```javascript
memorio.devtools.inspect()
```
### Export and restore state
```javascript
// Export
const backup = memorio.devtools.exportData()
// Later... import
memorio.devtools.importData(backup)
```
### Monitor changes
```javascript
// Watch a specific path
memorio.devtools.watch('state', 'counter')
// Now changes will be logged to console
state.counter = 42 // Console shows: 👁 Change: state.counter = 42
```
# IDB - Memorio
IDB provides access to browser IndexedDB for large data storage. Unlike localStorage, IDB can store large amounts of structured data.
## Installation
```bash
npm install memorio
```
```javascript
import 'memorio';
```
---
## Quick Examples
### Example 1: Basic Usage
```javascript
// Create a database
idb.db.create('myApp');
// Add data
idb.data.set('myApp', 'users', { id: 1, name: 'Mario' });
// Get data
const user = idb.data.get('myApp', 'users', 1);
console.log(user.name); // "Mario"
```
### Example 2: Intermediate
```javascript
// Create database with tables
idb.db.create('store');
idb.table.create('store', 'products');
// Add multiple records
idb.data.set('store', 'products', { id: 1, name: 'Apple', price: 1.5 });
idb.data.set('store', 'products', { id: 2, name: 'Banana', price: 0.8 });
// List databases
const databases = idb.db.list();
console.log(databases); // ['myApp', 'store']
```
### Example 3: Advanced
```javascript
// Check database support
if (idb.db.support()) {
// Use IDB
}
// Get database info
const version = idb.db.version('store');
const size = idb.db.size('store');
// Delete database
idb.db.delete('store');
// Handle quota
const quota = idb.db.quota();
console.log(`Using ${quota.used} of ${quota.total} bytes`);
```
---
## API Reference
### Database Methods
| Method | Parameters | Returns | Description |
|--------|------------|---------|-------------|
| `idb.db.create(name)` | `name: string` | `void` | Create database |
| `idb.db.delete(name)` | `name: string` | `void` | Delete database |
| `idb.db.list()` | none | `string[]` | List all databases |
| `idb.db.exist(name)` | `name: string` | `boolean` | Check if exists |
| `idb.db.size(name)` | `name: string` | `number` | Get database size |
| `idb.db.version(name)` | `name: string` | `number` | Get version |
| `idb.db.support()` | none | `boolean` | Check browser support |
| `idb.db.quota()` | none | `object` | Get storage quota |
### Table Methods
| Method | Parameters | Returns | Description |
|--------|------------|---------|-------------|
| `idb.table.create(db, table)` | `db: string, table: string` | `void` | Create table |
| `idb.table.size(db, table)` | `db: string, table: string` | `number` | Get table size |
### Data Methods
| Method | Parameters | Returns | Description |
|--------|------------|---------|-------------|
| `idb.data.get(db, table, id)` | `db, table, id` | `any` | Get single record |
| `idb.data.set(db, table, data)` | `db, table, data` | `void` | Set record |
| `idb.data.delete(db, table, id)` | `db, table, id` | `void` | Delete record |
---
## Data Structure
Each record needs an `id` field:
```javascript
idb.data.set('myDB', 'users', {
id: 1, // Required!
name: 'Mario',
email: 'm@test.com'
});
```
---
## Storage Limits
- **Desktop browsers**: 50+ MB (often unlimited)
- **Mobile browsers**: 50-100 MB
- **More than localStorage**: Much higher limits
---
## Best Practices
1. Always include `id` in records
2. Use for large data: images, caches, offline data
3. Check support: `idb.db.support()`
4. Clean up: `idb.db.delete('tempDB')`
---
## Use Cases
### Offline Data
```javascript
// Cache API response
idb.data.set('cache', 'apiResponse', {
id: 'users',
data: usersArray,
timestamp: Date.now()
});
```
### Large User Data
```javascript
// Store user-generated content
idb.data.set('app', 'uploads', {
id: Date.now(),
file: fileData,
userId: currentUser.id
});
```
# Memorio Logger
Automatic logging middleware for tracking all state changes in Memorio.
## Overview
The logger automatically tracks all operations (set, delete, clear) across all modules:
- State
- Store
- Session
- Cache
## Configuration
### configure(options)
Configure the logger.
```javascript
memorio.logger.configure({
enabled: true, // Enable/disable logging
logToConsole: true, // Log to browser console
customHandler: function(entry) { ... }, // Custom handler
modules: ['state', 'store', 'session', 'cache'], // Modules to log
maxEntries: 1000 // Maximum log history size
})
```
### enable()
Enable logging.
```javascript
memorio.logger.enable()
```
### disable()
Disable logging.
```javascript
memorio.logger.disable()
```
## Methods
### getHistory()
Get all log entries.
```javascript
const history = memorio.logger.getHistory()
// Returns array of LogEntry objects
```
### getStats()
Get statistics about logged operations.
```javascript
const stats = memorio.logger.getStats()
// Returns: { total, state, store, session, cache, set, get, delete, clear }
```
### clearHistory()
Clear log history.
```javascript
memorio.logger.clearHistory()
```
### exportLogs()
Export logs as JSON string.
```javascript
const json = memorio.logger.exportLogs()
```
## Log Entry Structure
```javascript
{
timestamp: "2026-02-18T12:00:00.000Z",
module: "state",
action: "set",
path: "user.name",
value: "John",
previousValue: "Jane"
}
```
## Examples
### Basic usage
```javascript
// Logging is enabled by default
state.user = { name: 'John' }
// Console: [Memorio:STATE] set user → value: { name: 'John' }
```
### Get statistics
```javascript
const stats = memorio.logger.getStats()
console.log(stats)
// { total: 15, state: 5, store: 3, session: 2, cache: 5, set: 10, get: 0, delete: 3, clear: 2 }
```
### Disable specific modules
```javascript
memorio.logger.configure({
modules: ['state'] // Only log state changes
})
```
### Custom handler
```javascript
memorio.logger.configure({
customHandler: (entry) => {
// Send to analytics
analytics.track('memorio_change', entry)
}
})
```
### Export and analyze
```javascript
// Get all logs
const logs = memorio.logger.getHistory()
// Filter by module
const stateLogs = logs.filter(l => l.module === 'state')
// Filter by action
const setOperations = logs.filter(l => l.action === 'set')
// Export for debugging
console.log(memorio.logger.exportLogs())
```
# Observer - Memorio
> ⚠️ **DEPRECATED**: This function is deprecated and will be removed in future versions. Please use [`useObserver`](USEOBSERVER.md) instead.
Observer lets you react to state changes. When a state key changes, your callback function runs.
## Installation
```bash
npm install memorio
```
```javascript
import 'memorio';
```
---
## Quick Examples
### Example 1: Basic Usage
```javascript
// Simple observer (DEPRECATED - use useObserver instead)
console.warn('observer() is deprecated. Please use useObserver() for React or memorio.dispatch for vanilla JS.');
observer('state.counter', (newValue) => {
console.log('Counter is now:', newValue);
});
state.counter = 1;
// Output: "Counter is now: 1"
state.counter = 5;
// Output: "Counter is now: 5"
```
> **Note**: For new projects, use [`useObserver`](USEOBSERVER.md) for React or [`memorio.dispatch`](SUMMARY.md) for vanilla JS.
### Example 2: Intermediate
```javascript
// Observer with old value
observer('state.user', (newValue, oldValue) => {
console.log(`User changed from ${oldValue?.name} to ${newValue?.name}`);
});
state.user = { name: 'Mario' };
// Output: "User changed from undefined to Mario"
state.user = { name: 'Luigi' };
// Output: "User changed from Mario to Luigi"
```
### Example 3: Advanced
```javascript
// Multiple observers
const obs1 = observer('state.data', handler1);
const obs2 = observer('state.data', handler2);
// List all observers
console.log(observer.list);
// Output: [{ name: 'state.data', id: '...' }, ...]
// Remove specific observer
observer.remove('state.data');
// Remove all observers
observer.removeAll();
```
---
## API Reference
### observer(path, callback)
| Parameter | Type | Description |
|-----------|------|-------------|
| `path` | `string` | State path to watch (e.g., `'state.counter'`) |
| `callback` | `function` | Function called on change |
### Callback Parameters
```javascript
observer('state.key', (newValue, oldValue) => {
// newValue: the new value
// oldValue: the previous value
});
```
### Properties
| Property | Type | Description |
|----------|------|-------------|
| `observer.list` | `Array` | Get all active observers |
### Methods
| Method | Parameters | Description |
|--------|------------|-------------|
| `observer.remove(name)` | `string` | Remove observer for specific path |
| `observer.removeAll()` | none | Remove all observers |
---
## React Integration
### With useState
```javascript
const [count, setCount] = useState(0);
observer('state.counter', () => {
setCount(state.counter);
});
```
### With useEffect
```javascript
useEffect(() => {
const handleChange = (newVal) => {
console.log('Changed:', newVal);
};
observer('state.data', handleChange);
// Cleanup
return () => observer.remove('state.data');
}, []);
```
---
## How It Works
Observer subscribes to state changes via the Proxy's set trap. When `state.key = value` is called:
1. The Proxy intercepts the set
2. Fires all callbacks registered for that path
3. Callbacks receive newValue and oldValue
---
## Best Practices
1. Clean up observers in React `useEffect` return
2. Use specific paths: `'state.user.name'` not `'state'`
3. Remove observers when components unmount
4. Use `observer.removeAll()` on page navigation
---
## Common Patterns
### Form Validation
```javascript
observer('state.form.email', (email) => {
const isValid = email.includes('@');
state.form.isValid = isValid;
});
```
### Analytics
```javascript
observer('state.page', (page) => {
analytics.track('page_view', { page });
});
```
### Auto-save
```javascript
observer('state.draft', (content) => {
store.set('autosave', content);
});
```
# Session - Memorio
Session provides temporary storage using browser sessionStorage. Data persists until the tab or window is closed.
## Installation
```bash
npm install memorio
```
```javascript
import 'memorio';
```
---
## Quick Examples
### Example 1: Basic Usage
```javascript
// Save session data
session.set('token', 'abc123');
session.set('userId', 42);
// Read session data
console.log(session.get('token')); // "abc123"
```
### Example 2: Intermediate
```javascript
// Store objects
session.set('user', { name: 'Mario', role: 'admin' });
// Remove specific item
session.remove('token');
// Clear all session data
session.removeAll();
```
### Example 3: Advanced
```javascript
// Check if session has data
if (session.get('authToken')) {
// User is logged in
}
// Get storage quota (returns Promise<[usage, quota]> in KB)
const [used, total] = await session.quota();
console.log(`Using ${used} out of ${total} KB`);
// Get total size in characters
const size = session.size();
console.log(`${size} bytes`);
// Handle session expiry
window.addEventListener('storage', (e) => {
if (e.key === 'session' && !e.newValue) {
// Session cleared
redirectToLogin();
}
});
```
---
## API Reference
### Methods
| Method | Parameters | Returns | Description |
|--------|------------|---------|-------------|
| `session.get(name)` | `name: string` | `any` | Get value from session |
| `session.set(name, value)` | `name: string, value: any` | `void` | Save value to session |
| `session.remove(name)` | `name: string` | `boolean` | Remove single item |
| `session.delete(name)` | `name: string` | `boolean` | Alias for remove |
| `session.removeAll()` | `none` | `boolean` | Clear all session data |
| `session.clearAll()` | `none` | `boolean` | Alias for removeAll |
| `session.size()` | `none` | `number` | Get total size in characters |
| `session.quota()` | `none` | `Promise<[number, number]>` | Get storage usage/quota in KB |
---
## Store vs Session
| Feature | Store | Session |
|---------|-------|---------|
| Storage | localStorage | sessionStorage |
| Lifetime | Forever | Until tab closes |
| Use case | User preferences | Temporary auth |
| Shared across tabs | Yes | No |
---
## Best Practices
1. Use for auth tokens: `session.set('token', jwt)`
2. Clear on logout: `session.removeAll()`
3. Don't use for persistent data
4. Check for null: `session.get('key') || defaultValue`
---
## Common Use Cases
### Authentication
```javascript
// Login
session.set('authToken', response.token);
session.set('user', response.user);
// Logout
session.removeAll();
router.push('/login');
```
### Form Progress
```javascript
// Save form draft
session.set('formDraft', formData);
// Restore on page refresh
const draft = session.get('formDraft');
if (draft) restoreForm(draft);
# State - Memorio
State is a reactive global state manager using JavaScript Proxies. It's simple, powerful, and requires no setup. Data persists only in memory during the session.
## Installation
```bash
npm install memorio
```
```javascript
import 'memorio';
```
That's it. `state` is now global.
---
## Quick Examples
### Example 1: Basic Usage
```javascript
// Set a value
state.name = 'Mario';
state.age = 25;
// Get a value
console.log(state.name); // "Mario"
// Simple object
state.user = { name: 'Luigi', level: 1 };
```
### Example 2: Intermediate
```javascript
// Array operations
state.items = [1, 2, 3];
state.items.push(4);
console.log(state.items); // [1, 2, 3, 4]
// Nested objects
state.config = { theme: 'dark', lang: 'en' };
state.config.theme = 'light';
// List all states
console.log(state.list);
```
### Example 3: Advanced
```javascript
// Lock state to prevent modifications
state.frozenConfig = { maxUsers: 100 };
state.frozenConfig.lock();
// Now state.frozenConfig cannot be modified
// Path tracking
const path = state.user.path;
console.log(path.name); // "user"
console.log(path.profile.name); // "user.profile"
// Get full path as string
console.log(state.user.__path); // "state.user"
// Protected keys (internal use)
console.log(protect); // Array of protected keys
```
---
## API Reference
### Properties
| Property | Type | Description |
|----------|------|-------------|
| `state.list` | Array | Get all current state keys (deep copy) |
| `state.path` | Object | Get path tracker for current location |
| `state.__path` | string | Get full path as string |
### Methods
| Method | Parameters | Description |
|--------|------------|-------------|
| `state.remove(key)` | `key: string` | Remove a specific state |
| `state.removeAll()` | none | Clear all states |
### Lock
```javascript
// Lock an object or array
state.myArray = [1, 2, 3];
state.myArray.lock();
// Now any modification will fail
state.myArray.push(4); // Error: state 'myArray' is locked
```
---
## How It Works
Memorio uses JavaScript `Proxy` to intercept get/set operations on the global `state` object. This allows:
1. **Reactivity** - Any change can trigger observers
2. **Nested objects** - Deep path tracking
3. **Type safety** - Full TypeScript support
---
## Best Practices
1. Use descriptive keys: `state.userProfile` not `state.up`
2. Group related data: `state.cart.items` not `state.cartItems`
3. Lock static config: `state.appConfig.lock()`
4. Clean up on logout: `state.removeAll()`
5. Use path tracking for debugging: `state.myData.__path`
---
## Common Errors
```javascript
// Error: protected key
state._internal = 'value';
// Output: "key _internal is protected"
// Error: locked state
state.locked = { x: 1 };
state.locked.lock();
state.locked.x = 2;
// Output: "Error: state 'locked' is locked"
```
# Store - Memorio
Store provides persistent localStorage management with a simple API. Data survives page refreshes and browser restarts.
## Installation
```bash
npm install memorio
```
```javascript
import 'memorio';
```
---
## Quick Examples
### Example 1: Basic Usage
```javascript
// Save data
store.set('username', 'Mario');
store.set('score', 1500);
// Read data
console.log(store.get('username')); // "Mario"
console.log(store.get('score')); // 1500
```
### Example 2: Intermediate
```javascript
// Store objects
store.set('user', { name: 'Luigi', level: 5 });
const user = store.get('user');
console.log(user.name); // "Luigi"
// Remove single item
store.remove('username');
// Check size
const totalSize = store.size();
console.log(`${totalSize} bytes`);
```
### Example 3: Advanced
```javascript
// Get storage quota (returns Promise<[usage, quota]> in KB)
const [used, total] = await store.quota();
console.log(`Using ${used} out of ${total} KB`);
// Get total size in characters
const size = store.size();
console.log(`${size} bytes`);
// Clear all data
store.removeAll();
// or use alias
store.clearAll();
// Handle errors gracefully
try {
store.set('largeData', hugeObject);
} catch (err) {
console.error('Storage full:', err);
}
```
---
## API Reference
### Methods
| Method | Parameters | Returns | Description |
|--------|------------|---------|-------------|
| `store.get(name)` | `name: string` | `any` | Get value from storage |
| `store.set(name, value)` | `name: string, value: any` | `void` | Save value to storage |
| `store.remove(name)` | `name: string` | `boolean` | Remove single item |
| `store.delete(name)` | `name: string` | `boolean` | Alias for remove |
| `store.removeAll()` | none | `boolean` | Clear all storage |
| `store.clearAll()` | none | `boolean` | Alias for removeAll |
| `store.size()` | none | `number` | Get total size in characters |
| `store.quota()` | none | `Promise<[number, number]>` | Get storage usage/quota in KB |
### Supported Types
```javascript
// All JSON-serializable types work
store.set('string', 'hello');
store.set('number', 42);
store.set('boolean', true);
store.set('array', [1, 2, 3]);
store.set('object', { key: 'value' });
store.set('null', null);
store.set('undefined', null); // converted to null
```
### Not Supported
```javascript
// Functions will log an error
store.set('myFunc', () => {});
// Output: "It's not secure to store functions."
```
---
## How It Works
Store wraps the browser's `localStorage` API with:
- Automatic JSON serialization/deserialization
- Error handling for parse failures
- Size calculation
- Quota monitoring
---
## Storage Limits
- **Chrome/Safari**: ~5-10 MB
- **Firefox**: ~10 MB
- **Edge**: ~5-10 MB
Use `store.quota()` to monitor usage.
---
## Best Practices
1. Prefix keys: `store.set('app_username', '...')`
2. Check before set: `if (store.get('key')) { ... }`
3. Handle quota: Try/catch around large data
4. Clean up: `store.removeAll()` on logout
# Table of contents
* [README](../README.md)
## Core Modules
* [State](STATE.md) - Reactive global state management
* [Observer](OBSERVER.md) - ⚠️ Deprecated (use useObserver)
* [useObserver](USEOBSERVER.md) - React hook for state observation
* [Cache](CACHE.md) - In-memory caching (lost on refresh)
* [Store](STORE.md) - Persistent localStorage management
* [Session](SESSION.md) - Temporary sessionStorage management
* [IDB](IDB.md) - IndexedDB for large data storage
## Additional Resources
* [License](../LICENSE.md)
* [Contributing](../CONTRIBUTING.md)
* [Code of Conduct](../CODE_OF_CONDUCT.md)
* [Security](../SECURITY.md)
## Changelog
* [Changelog](../CHANGELOG.md)
* [History](../HISTORY.md)
# useObserver - Memorio
useObserver is a React hook for observing state changes. It automatically subscribes to state changes and includes powerful auto-discovery features.
## Installation
```bash
npm install memorio
```
```javascript
import 'memorio';
```
---
## Quick Examples
### Example 1: Basic Usage
```javascript
import { useObserver } from 'memorio';
function Counter() {
useObserver(() => {
console.debug('Counter changed:', state.counter);
}, [state.counter]);
return <div>{state.counter}</div>;
}
```
### Auto-Discovery (Magic Mode)
```javascript
// Pass your callback WITHOUT dependencies - it auto-discovers!
function MyComponent() {
useObserver(() => {
// This will automatically track ALL state properties used inside
console.debug('Something changed:', state.user.name, state.items.length);
});
return <div>{state.user.name}</div>;
}
```
### Example 2: Intermediate
```javascript
function UserProfile() {
const [localState, setLocalState] = useState(null);
useObserver(() => {
setLocalState(state.user);
}, [state.user]);
return <div>{localState?.name}</div>;
}
```
### Example 3: Advanced
```javascript
// Multiple watchers with array
function MultiWatch() {
useObserver(() => {
console.debug('A or B changed:', state.a, state.b);
}, [state.a, state.b]);
return <div>{state.a} - {state.b}</div>;
}
```
// With string path (for store)
function StoreWatcher() {
useObserver(() => {
console.debug('Store changed');
}, 'store.userPreferences');
return <div />;
}
```
---
## API Reference
### useObserver(callback, deps)
| Parameter | Type | Description |
| --------- | ---- | ----------- |
| `callback` | `function` | Function to run on change |
| `deps` | `function \| string \| array` | State path(s) to watch |
### Callback Parameters
```javascript
useObserver((newValue, oldValue) => {
console.debug('Changed:', newValue);
}, [state.key]);
```
### Auto-Discovery Mode
When `deps` is omitted, useObserver automatically discovers all state properties accessed inside the callback:
```javascript
// No deps needed - magic auto-discovery!
useObserver(() => {
// Automatically tracks state.user, state.items, state.counter
console.log(state.user.name, state.items.length, state.counter);
});
```
Returns a cleanup function:
## useObserver vs observer
| Feature | observer | useObserver |
| ------- | -------- | ----------- |
| Framework | Vanilla JS | React |
| Auto-cleanup | Manual | Auto |
| React lifecycle | No | Yes |
---
## Common Patterns
### Sync with useState
```javascript
function MyComponent() {
const [data, setData] = useState(null);
useObserver((newVal) => {
setData(newVal);
}, [state.data]);
return <div>{data}</div>;
}
```
### Multiple Watchers
```javascript
}, [state.a, state.b]);
```
---
## Best Practices
1. Always use in React components
2. Use auto-discovery for simpler code: `useObserver(() => { ... })`
3. No manual cleanup needed - returns cleanup function automatically
4. Use with state for reactive UI
5. Check console for auto-discovery logs