JavaScript LocalStorage Methods with Examples

The localStorage object is a type of web storage that allows Javascript websites and apps to store and access data right in the browser with no expiration date. This means the data stored in the browser will persist even after the browser window has been closed. The localStorage property object is read-only.

JavaScript LocalStorage Methods

To use LocalStorage in your web applications, there are 5 methods to choose from:
  1. setItem(): Add key and value to LocalStorage
  2. getItem(): Retrieve a value by the key from LocalStorage
  3. removeItem(): Remove an item by key from LocalStorage
  4. clear(): Clear all LocalStorage
  5. key(): Passed a number to retrieve nth key of a LocalStorage

Syntax

window.localStorage
The syntax for SAVING data to localStorage:
localStorage.setItem("key", "value");
The syntax for READING data from localStorage:
var lastname = localStorage.getItem("key");
The syntax for REMOVING data from localStorage:
localStorage.removeItem("key");
The syntax for CLEAR all data:
localStorage.clear();
Syntax for Key() Method:
var KeyName = localStorage.key(index);
Let's demonstrate each method with an example.

localStorage Methods Examples


Related JavaScript Source Code Examples

Adding a Method to a JavaScript Object Create JavaScript Object Using ES 6 Class Create JavaScript Object Using Object.create() method Create JavaScript Object using Constructor Function Create JavaScript Object using Object Literal Example Iterate over Properties of a JavaScript Object Example Delete Property of JavaScript Object Example Add Properties to JavaScript Object Example JavaScript Sequential Search Algorithm Example JavaScript Selection Sort Algorithm Example JavaScript Quick Sort Algorithm Example JavaScript Merge Sort Algorithm Example Find Min Value of an Array in JavaScript Find Max Value of an Array in JavaScript JavaScript Properties Best Practices JavaScript Variables Best Practices JavaScript Arrays Best Practices JavaScript Objects Best Practices JavaScript JSON.stringify() Example JavaScript JSON.parse() Example JavaScript SessionStorage Methods with Examples JavaScript LocalStorage Methods with Examples Lodash _.keys() and _.values() Example Lodash String Case Method Examples Lodash _.sum Method Example Lodash _.min and _.max() Methods Example Lodash _.range Method Example Lodash _.delay Method Example Lodash _.times Method Example Lodash _.shuffle() Method Example Lodash _.reduce Method Example Lodash _.keyBy Method Example Lodash _.random() Method Example Lodash _.slice() Method Example Lodash _.chunk() Method Example Lodash _.find Method Example Lodash _.first() and _.last() Method Examples Lodash _.assign Method Example SessionStorage.key JavaScript Example SessionStorage.clear JavaScript Example SessionStorage.removeItem JavaScript Example SessionStorage.getItem JavaScript Example SessionStorage.setItem JavaScript Example LocalStorage.key JavaScript Example LocalStorage.clear JavaScript Example LocalStorage.removeItem JavaScript Example LocalStorage.getItem JavaScript Example LocalStorage.setItem JavaScript Example

Comments

Post a Comment