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idb-keyval
Advanced tools
The idb-keyval npm package is a simple key-value store backed by IndexedDB. It provides a straightforward API for storing, retrieving, and managing data in the browser's IndexedDB, making it easier to work with compared to the native IndexedDB API.
Set a value
This feature allows you to store a value in the IndexedDB with a specified key. The code sample demonstrates how to set a value 'value' with the key 'key'.
import { set } from 'idb-keyval';
set('key', 'value').then(() => console.log('Value set!'));
Get a value
This feature allows you to retrieve a value from the IndexedDB using a specified key. The code sample demonstrates how to get the value associated with the key 'key'.
import { get } from 'idb-keyval';
get('key').then(val => console.log('Value:', val));
Delete a value
This feature allows you to delete a value from the IndexedDB using a specified key. The code sample demonstrates how to delete the value associated with the key 'key'.
import { del } from 'idb-keyval';
del('key').then(() => console.log('Value deleted!'));
Clear all values
This feature allows you to clear all values from the IndexedDB. The code sample demonstrates how to clear all stored values.
import { clear } from 'idb-keyval';
clear().then(() => console.log('All values cleared!'));
Get all keys
This feature allows you to retrieve all keys from the IndexedDB. The code sample demonstrates how to get all keys stored in the database.
import { keys } from 'idb-keyval';
keys().then(keys => console.log('Keys:', keys));
LocalForage is a fast and simple storage library for JavaScript. It improves the offline experience of your web app by using asynchronous storage (IndexedDB or WebSQL) with a simple, localStorage-like API. Compared to idb-keyval, LocalForage offers more flexibility in terms of storage backends and a more extensive API.
Dexie is a minimalistic wrapper for IndexedDB that provides a more powerful and developer-friendly API. It supports advanced querying, transactions, and versioning. Compared to idb-keyval, Dexie is more feature-rich and suitable for complex use cases involving IndexedDB.
The idb library is a small, well-tested library that makes working with IndexedDB more pleasant. It provides a promise-based API and simplifies many common tasks. Compared to idb-keyval, idb offers a more comprehensive API for interacting with IndexedDB, while idb-keyval focuses on simplicity and ease of use.
This is a super-simple-small promise-based keyval store implemented with IndexedDB, largely based on async-storage by Mozilla.
localForage offers similar functionality, but supports older browsers with broken/absent IDB implementations. Because of that, it's 7.4k, whereas idb-keyval is ~550 bytes. Also, it's tree-shaking friendly, so you'll probably end up using few than 450 bytes. Pick whichever works best for you!
This is only a keyval store. If you need to do more complex things like iteration & indexing, check out IDB on NPM (a little heavier at 1.7k). The first example in its README is how to recreate this library.
import { set } from 'idb-keyval';
set('hello', 'world');
set('foo', 'bar');
Since this is IDB-backed, you can store anything structured-clonable (numbers, arrays, objects, dates, blobs etc).
All methods return promises:
import { set } from 'idb-keyval';
set('hello', 'world')
.then(() => console.log('It worked!'))
.catch(err => console.log('It failed!', err));
import { get } from 'idb-keyval';
// logs: "world"
get('hello').then(val => console.log(val));
If there is no 'hello' key, then val
will be undefined
.
import { keys } from 'idb-keyval';
// logs: ["hello", "foo"]
keys().then(keys => console.log(keys));
import { del } from 'idb-keyval';
del('hello');
import { clear } from 'idb-keyval';
clear();
By default, the methods above use an IndexedDB database named keyval-store
and an object store named keyval
. You can create your own store, and pass it as an additional parameter to any of the above methods:
import { Store, set } from 'idb-keyval';
const customStore = new Store('custom-db-name', 'custom-store-name');
set('foo', 'bar', customStore);
That's it!
npm install idb-keyval
Now you can require/import idb-keyval
:
import { get, set } from 'idb-keyval';
<script>
dist/idb-keyval.mjs
is a valid JS module.dist/idb-keyval-iife.js
can be used in browsers that don't support modules. idbKeyval
is created as a global.FAQs
A super-simple-small keyval store built on top of IndexedDB
The npm package idb-keyval receives a total of 514,079 weekly downloads. As such, idb-keyval popularity was classified as popular.
We found that idb-keyval 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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