@htmlguyllc/jpack
Advanced tools
jPack is a vanilla javascript library of components, classes, plugin wrappers, and utilities designed to make building custom websites and web applications simpler.
But why?
Many plugins and libraries are too generic, verbose, bulky, lacking, or have a lot of dependencies. Much of what is included here is stuff that I've written several times, in several different ways, using jQuery in the past (or wrapping other jQuery plugins). The goal of this library is to allow me (and you, now that it's open source) to integrate slim, mostly dependency-free, components as-needed with more specific use-cases than what is currently offered elsewhere.
...where else can you get a component to grab a form from another page and stick it on the current one with XHR and XHR submission in 4 lines of custom JS?
| Component | Demo | Data Type | What it does |
|---|---|---|---|
| navigation | object | Grabs HTML from a URL and replaces content on the current page. Handles browser history, meta title swaps, and offers several callbacks | |
| XHRForm | class | Adds an on-submit listener and sends the form values using XHR with callbacks for success/failure | |
| FormFromURL (extends XHRForm) | class | Grabs a form from a URL and places it on the current page (examples/FormModalFromURL shows how to put the form in a modal) and then uses an XHR request to submit the form | |
| request | demo | object | Provides a wrapper for window.location and easy querystring interaction |
| Site | demo | class | A generic website class with properties for id, name, and config - useful for multi-tenant applications where you need to know which site is being viewed |
| User | demo | class | A generic user class with properties for id, name, email, phone, etc - also allows for front-end permission checks |
| strings | demo | object | Contains methods for semi-common string manipulation like creating a getter from a string ('hi' = 'getHi') |
| type_checks | demo | object | Validate the value of a variable with higher specificity than built-in functions. For instance, you can validate an object contains specific keys and throw errors if not, or if it contains keys that you didn't define |
| dom | demo | object | Has methods for converting just about anything into a native DOM Element or array of them (you can provide a string selector, jQuery object, native DOM object, etc). Also has some shortcuts for common DOM checks/manipulation (like removing an element, verifying an element exists in the DOM, or replacing an element with HTML) |
| events | demo | object | Includes methods for attaching event handlers including shorthand methods which create handlers that prevent the browser's default action (onclick, onsubmit) |
| ToggleOnMobile | demo | class | Toggle an element's visibility when you click a button. By default, the element is visible, but if the button is visible, the element will be hidden until the button is clicked. If the element is visible and the user clicks outside of it, the element is hidden. If the window is resized, the element will be shown or hidden based on visibility of the button. |
Download the latest release, unzip and move it into your website's public folder, then include it in your HTML.
Use either jpack.min.js or jpack.bundled.min.js, BUT NOT BOTH. The bundled file includes the dependencies and you don't need them if you already have them in your project.
<script href="/@htmlguyllc/jpack/dist/jpack.bundled.min.js">
<!-- <script href="/@htmlguyllc/jpack/dist/jpack.min.js"> -->
<script>
//wait for the page to finish loading so we know jpack is ready
window.addEventListener('load', function() {
//now you can take advantage of the jpack library
jpack.strings.ucfirst('bob'); //Bob
//if you want to change the namespace
jpack.setGlobal("$");
$.strings.ucfirst('bob');
//if you want to make all global without a namespace - do so at your own risk! Things may conflict!
jpack.setGlobal();
strings.ucfirst('bob');
};
</script>
npm i @htmlguyllc/jpack;
//or
yarn add @htmlguyllc/jpack;
//a single component from it's own file
import {strings} from '@htmlguyllc/jpack/es/strings';
strings.ucfirst('bob');
//or multiple components from jpack
import {strings, dom} from '@htmlguyllc/jpack';
strings.ucfirst('bob');
dom.exists('a.my-link');
//or a namespaced object containing all components
import * as j from '@htmlguyllc/jpack';
j.strings.ucfirst('bob');
var jpack = require('@htmlguyllc/jpack');
//now use it
jpack.strings.ucfirst('bob');
| Name | Required by | Link |
|---|---|---|
| url-search-params-polyfill | request | https://www.npmjs.com/package/url-search-params-polyfill |
| axios | navigation | https://www.npmjs.com/package/axios |
| formdata-polyfill | XHRForm (and anything that extends it) | https://www.npmjs.com/package/formdata-polyfill |
| Properties | Default | Notes |
|---|---|---|
| pushState | true | enables pushing the new URL to the browser's history each time .load() is called |
| loaderEnabled | true | enables a loader if the the .load() request takes too long |
| trackHistory | false | stores the URL and route in an array each time .load() is called to track history |
| Primary Methods | Params (name:type) | Return | Notes |
|---|---|---|---|
| setConfig | config:object | self | sets multiple configuration options at once (see examples below for more info) |
| initHistoryHandlers | self | sets event listeners to handle back/forward navigation in the user's browser (only use if pushState is true) | |
| setIncomingElement | el:string | self | a selector string for the element being retrieved from another page which contains the HTML you want put on the current page |
| setReplaceElement | el:string | self | a selector string for the element on the current page you want the new HTML to replace |
| load | url:string, data:object, onload:function/null, options:object{incomingElement:string, replaceElement:string, pushState:bool} | self | pulls content from the provided URL and puts it on the current page - also swaps out the page title, metas, and much more - all parameters passed to this method only pertain to this specific load. They do not persist on the navigation object. |
| showLoader | self | shows the loader after the delay | |
| hideLoader | self | clears the loader timeout and hides it | |
| reload | callback:function | self | reloads the current page using .load() |
| fullReload | void | performs a full browser refresh of the current page | |
| redirect | url:string | void | redirects the user to a new page (no XHR request) |
| showLoader | self | sets a timeout (using the loaderDelay) with a callback to show the loader | |
| hideLoader | self | cancels the timeout if it hasn't shown yet and hides the loader | |
| resetConfig | self | resets config options back to their defaults |
| Event Methods | Params (name:type) | Return | Callback Params (name:type) | Notes |
|---|---|---|---|---|
| onBeforeRequest | callback:function | self | el:Element, data:object, config:{ selector:string, replacedSelector:string, route:string/null} | adds a callback to run prior to the request, if the callback returns false, the request will not be made |
| removeOnBeforeRequest | callback:function | self | removes an onbeforerequest callback (must provide the original function) | |
| onload | callback:function | self | el:Element, data:object, config:{ selector:string, replacedSelector:string, route:string/null} | add an onload callback |
| removeOnload | callback:function | self | removes an onload callback (must provide the original function) | |
| onUnload | callback:function | self | el:Element, data:object, {selector:string, route:string/null} | add an unload callback |
| removeOnunload | callback:function | self | removes an unload callback (must provide the original function) | |
| onFail | callback:function | self | error:string, url:string, data:object, axios_error:object/null | add a callback when the load() request fails - receives 2 params (error:string, axios_error:object) |
| removeOnFail | callback:function | self | removes a failure callback (must provide the original function) |
| Setters/Getters | Params (name:type) | Return | Notes |
|---|---|---|---|
| getConfig | object | returns the config options as an object | |
| getIncomingElement | string | ||
| getReplaceElement | string | ||
| setData | data:object | self | sets a data object that is automatically passed to every .onload(), .onUnload(), and .onFail() callback |
| getData | object | ||
| setDataItem | key:string, val:mixed | self | sets a single data value |
| getDataItem | key:string | self | returns null if it doesn't exist |
| clearData | self | clears all data | |
| setLoaderDelay | delay:int | self | set how long a request should take in ms before the loader displays |
| getLoaderDelay | self | ||
| getHistory | array | returns an array of objects containing "url" and "route" starting with the first URL passed to .load() and ending with the latest | |
| getLastHistoryRecord | object | returns an object containing "url" and "route" for the last page grabbed by .load() |
import {navigation} from '@htmlguyllc/jpack/es/navigation';
/**
* Shown with defaults, you don't need to provide all of these, just what you want to modify
* If the defaults are fine, you don't need to call setConfig()
*/
navigation.setConfig({
trackHistory:false, //keep track of URLs loaded in an array (see setters/getters above for how to retrieve records)
pushState:true, //push new URLs to the browser's history
loaderEnabled:true, //show a loader during the request process
loaderDelay:300, //how long the request needs to take before the loader is shown
incomingElementSelector:'body', //what element in the content from the URL should be grabbed
replaceElementSelector:'body', //what element on the page should be replaced with the incoming one
loaderClasses:'progress page-navigation-loader', //the loader consists of two divs (outer/inner) and uses Bootstrap 4's progress-bar classes (no styling is included so you should either add Bootstrap, change these classes and add your own styling, or just disable the loader)
loaderInnerDivClasses:'progress-bar progress-bar-striped progress-bar-animated',
});
//attaches event handlers to automatically use XHR to reload pages when the user pushes the back and forward buttons in their browser (will not work if pushState is false)
navigation.initHistoryHandlers();
/**
* Add as many onBeforeRequest callbacks as you'd like to run every time a page is loaded
*
* el is the element about to be replaced
* data the data object you set when you called .load() or using setData/setDataItem (see above method details) - the two objects are merged and passed
* config is an object {selector, replacedSelector, route}
* selector is the "replaceSelector" used to grab the current element (to be replaced)
* incomingSelector is the selector that will be used to grab the new element
* route is the current page's route
*/
navigation.onBeforeRequest(function(el, data, config){
//...do something...like...show a custom loader? validate data?
return true; //if you return false from ANY of your onBeforeRequest callbacks, the request will be prevented!
});
/**
* Add as many onload callbacks as you'd like to run every time a page is loaded
*
* el is the new element on the page
* data the data object you set when you call .load() or using setData/setDataItem (see above method details)
* config is an object {selector, replacedSelector, route}
* selector is the "incomingSelector" used to grab the new element
* replacedSelector is the selector used to find the element that was replaced
* route is the new page's route (if set in JSON or HTML response)
*/
navigation.onload(function(el, data, config){
//some things you might want to run every time a page loads:
//if gtag is set (google analytics), push a page view
if( typeof gtag !== 'undefined' ) {
gtag('config', 'GA_MEASUREMENT_ID', {
page_path: request.getURIWithQueryString()
});
}
//if trackHistory is true, you can grab the last history record (or all - see getters/setters above)
var last_history = navigation.getLastHistoryRecord();
if( last_history ){
const last_url = last_history.url;
const last_route = last_history.route;
}
//scroll to the top of the page
window.scrollTo(0, 0);
//.. do more...like init tooltip plugins
});
/**
* Add as many unload callbacks as you'd like to run every time a page is loaded (just before the new HTML is replaced with the old)
*
* Params are the same as onload except config doesn't have replacedSelector
*
* Keep in mind this is the element that will be removed shortly (and config.selector is the selector used to retrieve that element)
*
*/
navigation.onUnload(function(el, data, config){
//.. do something...like remove event handlers or destroy plugins
});
/**
* Adds as many failure callbacks you'd like to run every time a page fails to load
*
* error is the string message
* url is the requested URL that failed
* data is the data you provided to be passed onto that page
* axios_error is an error object set by axios that will be available if that's where the error occurred
*/
navigation.onFail(function(error, url, data, axios_error){
//.. do something...like show an error popup for the user or log the issue
});
/**
* Now load pages!
*
* It might look strange to you that you're passing values that are already in-scope for your callback.
* This is done for 2 reasons.
* 1) It protects the data you passed from modification (your object is cloned inside .load())
* 2) It passes that object to all the global onload() callbacks as well
*/
let data = {pass_this:'hi!'};
navigation.load('/my-url', data, function(el, data, config){
const passed = data.pass_this; //passed = 'hi!'
});
/**
* One of the easiest ways to use this plugin is to tie an event handler to onClick of any link containing a class or attribute
* In this example, all you have to do is add data-href in your link (like this: <a href="my-url" data-href>Link</a>)
*/
import {events} from '@htmlguyllc/jpack/es/events';
events.onClick('[data-href]', function(){
navigation.load(this.href);
});
/**
* Want to pass a value to all onload callbacks? It's easy!
*/
navigation.setData({
scrollToTop: true
});
//or
navigation.setDataItem('scrollToTop', true);
/**
* Now load a page and use it!
*/
navigation.load('/my-url', {}, function(el, data){
if( data.scrollToTop ){
window.scrollTo(0,0);
}
});
/**
* You can override global data per-request when you provide it to the .load() method
*/
navigation.load('/my-url', {
scrollToTop: false
}, function(el, data){
if( data.scrollToTop ){
//won't be called
window.scrollTo(0,0);
}
});
| Method/Property | Params (name:type) | Return | Notes |
|---|---|---|---|
| constructor | form:Element,options:object | self | |
| setXHRSubmit | enabled:bool | self | enable/disable the XHR submission of the form |
| setSubmitMethod | method:string | self | override the form and provide a method (GET, POST, PATCH) |
| getSubmitMethod | method:string | ||
| setSubmitURL | url:mixed | self | pass null to use the form's action, function to dynamically generate the URL (receives the form as a param), or string |
| getSubmitURL | url:string | returns whatever was set in the constructor or using setSubmitURL, not the final URL | |
| getFinalSubmitURL | form:Element | url:string | returns the URL the form will be submitted to after running the function (if it is one) and using all fallbacks |
| attachSubmitHandler | form:mixed | self | attaches the event listener to on submit of the passed form |
| onSuccess | callback:function | self | adds an onSuccess callback (you can add as many as you'd like) |
| clearOnSuccessCallbacks | self | ||
| triggerOnSuccess | response:mixed, form:Element | self | runs all onSuccess callbacks and passes the server's response and the form element |
| onError | callback:function | self | adds an onError callback (you can add as many as you'd like) |
| clearOnErrorCallbacks | self | ||
| triggerOnError | error:string, response:mixed, form:Element | self | triggers all onError callbacks and passes the error string, server response, and form Element |
| submitForm | form:Element | self | gets URL and method, checks form validity using .validate(), gets values, submits, and kicks off callbacks |
| getFormValues | form:Element | self | returns data from the form to be submitted - override this if you want to manipulate it first |
| setValidateCallback | callback:function | is_valid:bool | pass a function to validate the form and return true if it's valid, false if it's not. False prevents form submission so you must display errors for the user within here. The default callback uses Bootstrap 4's "was-validated" class to show errors and HTML5's :invalid attribute to validate |
| validate | form:Element | bool | passes the form to the validate callback and returns the response |
import {XHRForm} from '@htmlguyllc/jpack/es/forms';
//shown with defaults
var remote_form = new XHRForm('form[name="my_form"]', {
xhrSubmit: true, //wouldn't make a whole lotta sent to use this if this were false lol, but it's here for extending classes and incase you want to toggle it for whatever reason
submitURL:null, //when null, the form's action will be used (if explicitly defined), otherwise it falls back to the URL the form was retrieved from
submitMethod:null, //when null, the form's method will be used (if explicitly defined), otherwise it falls back to POST
onError: function(error, response, form){ alert(error); }, //although you can add more, you can only pass 1 to start with in the constructor
onSuccess: function(response, form){ //although you can add more, you can only pass 1 to start with in the constructor
if(typeof response.success === "string"){ alert(response.success); }
else{ alert("Your submission has been received"); }
},
//validate the form, display any errors and return false to block submission
validateForm: function(form){
//add .was-validated for bootstrap to show errors
form.classList.add('was-validated');
//if there are any :invalid elements, the form is not valid
const is_valid = !form.querySelector(':invalid');
//if it's valid, clear the validation indicators
if( is_valid ) form.classList.remove('was-validated');
return is_valid;
}
});
//attach the submission handler
remote_form.attachSubmitHandler();
Grabs a form from a URL and places it on the current page (examples/FormModalFromURL shows how to put the form in a modal) and then uses an XHR request to submit the form
| Method/Property | Params (name:type) | Return | Notes |
|---|---|---|---|
| constructor | url:string, options:object | self | |
| setURL | url:string | self | set the URL to pull the form from |
| getURL | url:string | ||
| setIncomingElementSelector | selector:string | self | set a selector for the form element or it's parent that is returned by the URL |
| getIncomingElementSelector | selector:string | ||
| setInsertIntoElement | element:mixed | self | set the element that the form should be inserted into |
| getInsertIntoElement | element:mixed | ||
| getForm | void | pulls the form from the URL and runs the insertForm method | |
| insertForm | parsed_content:object, response:mixed, form:Element/null | el:Element | inserts the form into the parent element, attaches the submit handler, triggers onload, and returns the parent element |
| onload | callback:function | self | adds a callback function to be run when the form is loaded on the page |
| clearOnloadCallbacks | self | removes all onload callbacks | |
| triggerOnload | form:Element | self | runs all onload callbacks and passes the form to them |
There are several methods and properties inherited from XHRForm that are not listed here. See XHRForm above for those details
import {FormFromURL} from '@htmlguyllc/jpack/es/forms';
//shown with defaults
var remote_form = new FormFromURL('/my-form', {
incomingElementSelector: null, //when null, it assumes the entire response is the form's HTML
insertIntoElement: null, //error on null, must provide this
onload: function(form){ return this; }, //although you can add more, you can only pass 1 to start with in the constructor
xhrSubmit: true,
submitURL:null, //when null, the form's action will be used (if explicitly defined), otherwise it falls back to the URL the form was retrieved from
submitMethod:null, //when null, the form's method will be used (if explicitly defined), otherwise it falls back to POST
onError: function(error, response, form){ alert(error); }, //although you can add more, you can only pass 1 to start with in the constructor
onSuccess: function(response, form){ //although you can add more, you can only pass 1 to start with in the constructor
if(typeof response.success === "string"){ alert(response.success); }
else{ alert("Your submission has been received"); }
},
//validate the form, display any errors and return false to block submission
validateForm: function(form){
//add .was-validated for bootstrap to show errors
form.classList.add('was-validated');
//if there are any :invalid elements, the form is not valid
const is_valid = !form.querySelector(':invalid');
//if it's valid, clear the validation indicators
if( is_valid ) form.classList.remove('was-validated');
return is_valid;
}
});
//grab the form and insert in into the "insertIntoElement"
remote_form.getForm();
Your javascript
import {FormFromURL} from '@htmlguyllc/jpack/es/forms';
new FormFromURL('/email-form', {
insertIntoElement: 'body.form-container',
}).getForm();
Your HTML
<div class="form-container"></div>
Server response when retrieving /email-form (or, just the HTML without the JSON wrapper)
{
"html": "<form><input name='email' required='required'><input type='submit' value='Submit'></form>"
}
Server response when submitting to /email-form (success)
{ "success": "Thank you for submitting, your email has been provided to spammers everywhere" }
Server response when submitting to /email-form (error)
{ "error": "Your email is required/Your email is invalid" }
FormFromURL extends XHRForm and either can be extended as you need.
See examples/FormModalFromURL for an example
| Method/Property | Params (name:type) | Return | Notes |
|---|---|---|---|
| query | n/a | URLSearchParams | see https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams#Methods |
| isHttps | bool | ||
| getDomain | string | ||
| getDomainWithProtocol | string | ||
| getURI | string | also known as the path - does not include querystring | |
| getURIWithQueryString | string | full URL after the domain | |
| getFullURL | string | ||
| appendSlash | string:string | string | adds a slash (if there isn't already one) to the end of a string. |
import {request} from '@htmlguyllc/jpack/es/request';
//get product_id from the querystring
var product_id = request.query.get('product_id');
var current_full_url = request.getFullURL();
var full_blog_url = request.appendSlash(request.getDomainWithProtocol())+'blog'; //https://my-domain.com/blog
| Method/Property | Params (name:type) | Return | Notes |
|---|---|---|---|
| getId | string/int | ||
| setId | id:string/int | this | |
| getName | string | this | |
| setName | name:string | this | |
| getConfig | object | this | |
| setConfig | config:object | this | overwrites all config |
| getConfigItem | mixed | returns an individual item from config | |
| setConfigItem | key:string,val:mixed | this | sets the value of an individual item in config |
| populate | data:object | this | sets provided values all at once (id,name,config) |
The easy way:
Create an object named $site with values from your server (prior to including jpack)
<?php
$user = []; //get user from database/API
?>
<script>
const $user = {
id: <?php echo $user['id']; ?>,
fname: "<?php echo $user['fname']; ?>",
//..
permissions: JSON.parse("<?php echo json_encode($user['permissions']); ?>"),
additionalData: JSON.parse("<?php echo json_encode([
'user_type'=>$user['user_type'],
//whatever else you might want to pass
]); ?>"),
//..
};
</script>
Then instantiate the Site class in your JS file somewhere
const cur_site = new Site($site);
cur_site.getId();
@see: /examples/CurrentSiteSingleton for a method of instantiating the current site once and using everywhere Note: Even though that creates a singleton which is available anywhere, it's still highly recommended that you pass that object to functions and methods where it is used (dependency injection)
The harder way:
Perform an XHR request to grab site details via a JSON API, then run the populate method on the site object.
import {Site} from '@htmlguyllc/jpack/es/site';
//this example uses jQuery's shorthand AJAX call, you can use axios or any request you want
$.get('/my-site-info-endpoint.php', function(data){
//don't forget error handling!
const cur_site = new Site(JSON.parse(data));
});
Of course you can use this class for any site, not just the current one, but this is the intended usage.
| Method/Property | Params | Return | Notes |
|---|---|---|---|
| constructor | data:object | self | |
| getId | string/int | ||
| setId | id:string/int | this | |
| getIsGuest | bool | if your site has users who don't login but still interact and have a user record (like guest checkout) | |
| setIsGuest | is_guest:bool | this | |
| setIsAdmin | bool | if your site has users who have ultimate permissions and you want to do something based on that | |
| setIsGuest | is_admin:bool | this | |
| getUsername | string | ||
| setUsername | username:string | this | |
| getFname | string | ||
| setFname | fname:string | this | |
| getLname | string | ||
| setLname | lname:string | this | |
| getName | string | returns fname and lname concatenated with a space | |
| getEmail | string | ||
| setEmail | email:string | this | |
| getPhone | string | ||
| setPhone | phone:string | this | |
| getPermissions | array | ||
| setPermissions | permissions:array | this | |
| addPermission | permission:string/int | this | |
| removePermission | permission:string/int | this | |
| hasPermission | permission:string/int | bool | |
| getAdditionalData | object | set any additional data about this user that doesn't fit the default getters and setters here (a better idea would be to extend this object with your custom properties/methods) | |
| setAdditionalData | data:object | this | |
| getDataItem | key:string | mixed | returns a single value from the additional data object/array |
| setDataItem | key:string, val:mixed | sets a single value in the additional data array/object | |
| populate | data:object | this | sets provided values all at once (id, isGuest, isAdmin, etc) |
The easy way:
Create an object named $user with values from your server
<script>
const $user = {
id: <?php echo $user['id']; ?>,
fname: "<?php echo $user['fname']; ?>",
//..
permissions: JSON.parse("<?php echo json_encode($user['permissions']); ?>"),
additionalData: JSON.parse("<?php echo json_encode([
'user_type'=>$user['user_type'],
//whatever else you might want to pass
]); ?>"),
//..
};
</script>
Then instantiate the User class in your JS file somewhere
const cur_user = new User($user);
cur_user.getId();
@see: /examples/CurrentUserSingleton for a method of instantiating the current user once and using everywhere Note: Even though that creates a singleton which is available anywhere, it's still highly recommended that you pass that object to functions and methods where it is used (dependency injection)
The harder way:
Perform an XHR request to grab site details via a JSON API, then run the populate method on the site object.
import {User} from '@htmlguyllc/jpack/es/user';
$.get('/my-user-info-endpoint.php', function(data){
//don't forget error handling!
const cur_user = new User(JSON.parse(data));
});
Of course you can use this class for any User not just the current one, but that's the intended usage.
| Method/Property | Params (name:type) | Return | Notes |
|---|---|---|---|
| ucfirst | string:string | string | capitalizes the first letter of a string like ucfirst in PHP |
| getter | string:string | string | creates a getter method name from a string |
| setter | string:string | string | creates a setter method name from a string |
import {strings} from '@htmlguyllc/jpack/es/strings';
strings.ucfirst('bob'); //returns 'Bob'
strings.getter('name'); //returns 'getName';
strings.setter('name'); //returns 'setName';
| Method/Property | Params (name:type) | Return | Notes |
|---|---|---|---|
| getElement | el:mixed, error_on_none:bool, error_on_multiple:bool | Element/HTMLDocument/null | returns a native DOM element for whatever you provide (selector string, array of elements, single element, jQuery wrapped DOM element, etc) |
| getElements | el:mixed, error_on_none:bool | array | same as getElement, except it returns all matches |
| remove | el:mixed, error_if_not_found:bool | this | removes elements from the DOM - uses .getElements() |
| replaceElWithHTML | el:mixed, html:string, error_if_not_found:bool | Element | replaces an element in the DOM with HTML and returns a reference to the new Element |
| exists | el:mixed | bool | checks to see if it exists in the DOM |
| multipleExist | el:mixed | bool | checks to see if more than 1 instance exists in the DOM |
| isVisible | el:mixed, error_if_not_found:bool, error_on_multiple:bool | bool | checks to see if the provided element is visible |
import {dom} from '@htmlguyllc/jpack/es/dom';
//Dont do this. Most of these are dumb examples.
dom.getElement('.my-fav-button', true, true); //will throw an error if it doesn't find it, or if it finds more than 1
dom.getElements('.links', true); //will throw an error if none are found
dom.getElement('.my-button'); //returns the button, or null (if multiple, it returns the first)
dom.getElements('.links'); //returns an array of any matches for .links
dom.getElement($('a')); //returns the native DOM element for the link and removes the jQuery wrapper
dom.getElement(document.querySelectorAll('a')); //returns the first anchor
dom.exists('a'); //returns true if there is an anchor on the page
dom.multipleExist('a'); //returns true if more than 1 anchor on the page
| Method/Property | Params (name:type) | Return | Notes |
|---|---|---|---|
| isDataObject | value:object, keys:array, require_all_keys:bool, block_other_keys:bool, throw_error:bool | bool | validates that an object contains data and not a dom element, array, null or anything else that would normally return true when you call typeof |
import {type_checks} from '@htmlguyllc/jpack/es/type_checks';
var my_obj = {id:null, name:'John Doe', email:'john@doe.com'};
//make sure my_obj contains the keys: 'id', 'name', 'email'
//force all keys to exist
//block any keys that aren't in that list
//throw an error if the object fails any checks
type_checks.isDataObject(my_obj, ['id', 'name', 'email'], true, true, true);
| Method/Property | Params (name:type) | Return | Notes |
|---|---|---|---|
| setGlobal | namespace:string/null | self | adds each of the following functions to the global scope, a namespace is optional, but recommended. Use at your own risk! These may cause conflicts! |
| onClick | el:mixed, callback:function | handler:function | prevents the browser's default so you can handle link clicks and form submissions with less code - returns an updated handler in case you need to remove it later |
| onSubmit | el:mixed, callback:function | handler:function | same as .onClick() but for submit - returns an updated handler in case you need to remove it later |
| onEventPreventDefault | el:mixed, event:string, callback:function | callback:function | generates and attaches a handler which prevents the default action - returns the updated handler in case you need to remove it later |
| on | el:mixed, event:string, callback:function | array | attaches an event listener |
| off | el:mixed, event:string, callback:function | array | removes an event listener |
| trigger | el:mixed, event:string, event_options:mixed | array | triggers an event on an element/elements - uses .getElements() |
import {events} from '@htmlguyllc/jpack/es/events';
var preventedHandler = events.onClick('a.my-link', function(){
//do something without the page redirecting to the href
});
//now remove that handler
events.off('a.my-link', 'click', preventedHandler);
var handler = events.onSubmit('form.my-form', function(){
//do something and submit the form using XHR
});
//trigger submit on a form and pass an object as additional data in the event
events.trigger('.my-form', 'submit', {id:1});
import {events} from '@htmlguyllc/jpack/es/events';
events.setGlobal();
onClick('a', function(){
//do something - href is prevented!
});
| Method/Property | Params (name:type) | Return | Notes |
|---|---|---|---|
| constructor | btn:mixed, toggle_el:mixed, toggle_class:string, hide_on_outside_click:bool | self | |
| init | self | attaches event handlers and immediately adjusts the visibility | |
| destroy | self | removes event handlers - does not change the class |
import {ToggleOnMobile} from '@htmlguyllc/jpack/es/toggle';
const toggle = new ToggleOnMobile('.toggle-sidebar-btn', '.sidebar', 'visible', true);
toggle.init();
//and later if you want to, toggle.destroy();
FAQs
Core Javascript Library of Everyday Objects, Events, and Utilities
The npm package @htmlguyllc/jpack receives a total of 17 weekly downloads. As such, @htmlguyllc/jpack popularity was classified as not popular.
We found that @htmlguyllc/jpack demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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