Local Storage

Javascript class to save data (scalar values, object, array) into browser local storage for web and mobile app.

Native local storage allow you to store only primitive data type. This module allow you to store JSON objects and Array too using one method.

• Author: Valerio Barbera - [email protected]
• Author Website: www.gistmetrics.com

Install

npm install --save local-storage-bridge

Use

import LocalStorage from 'LocalStorage';

const storage = new LocalStorage();

Using prefix

You can set prefix that will be added before each key to distinguish same key between more apps.

const storage = new LocalStorage({ prefix: 'myapp_name_' });

Add prefix is similar to create a "namespace" for your app. If you set prefix, all subsequent operation (get, set, remove) will take effect on local storage params created under this prefix namespace. Into more apps you can use the same local storage params names but with different prefix they do not overwrite.

Single value

Classic usage of local storage.

storage.set('key1', 'Simple string');
storage.set('key2', 3);

console.log(storage.all());

JSON Object

When you put JSON object into set method, webStorage recognizes input and it serialize object. When you call get, webStorage return your original object.

storage.set('key3', {title: 'JSON Object'});

console.log(storage.all());

Array

storage.set('key4', [{title: 'Array of objects'}, {title: 'Array of objects'}]);

console.log(storage.all());

Remove

Remove a single value:

storage.remove('key1');

console.log(storage.all());

Or an array of keys:

storage.remove(['key1', 'key2']);

console.log(storage.all());

Clean all storage content:

storage.clean();

console.log(storage.all());

Attention when using clear() without set prefix. It is very likely that you will lose data of others applications.