This article is divided into of two parts:

• Part-1: Theoretical Explanation
• Part-2: Practical Implementation

A Theoretical Explanation for localStorage

What is a localStorage?

localStorage is a type of web storage that allows JavaScript sites 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 stored data is saved across browser sessions.

Data in a localStorage object created in a “private browsing” or “incognito” session is cleared when the last “private” tab is closed.

Methods and Properties provided by Storage Object

• setItem(key, value) – store key/value pair.
• getItem(key) – get the value by key.
• removeItem(key) – remove the key with its value.
• clear() – delete everything.
• key(index) – get the key on a given position.
• length – the number of stored items.

Don’t be confused, I’ll be covering each of them individually with detailed explanation.

A Complete Guide to LocalStorage in JavaScript - Part 2

#javascript #web development #localstorage