@heyHarshal

JavaScript Closures: Practical Usecase

Jul 5, 2024 · 4 min read · Encapsulation and Data Privacy In JavaScript, closures play a crucial role in promoting encapsulation and data privacy through lexical scoping. Let's revisit the createCounter example to understand how it achieves encapsulation and data privacy: ja...

Mastering Redux: Exploring Various State Types and Effective Management

May 9, 2024 · 5 min read · Discover how Redux manages various types of information such as user login, interface, getting data, forms, moving around, settings, and shopping carts. let's delve into each topic in more detail: User Authentication State: Purpose: This state keep...

JavaScript Interview Questions and Coding Problems - Part 1

Mar 20, 2024 · 6 min read · ⭐ Write a JavaScript function to check whether the given an input is an array or not. There are two ways : 1) Array.isArray() function checkArray(input){ return Array.isArray(input); } console.log(1); // false console.log([]); // tr...

Object and its common methods in javascript

Mar 13, 2024 · 4 min read · Object: Object has key-value pairs. In JavaScript objects, the keys are always stored and treated as strings, regardless of how they are specified. This means that even if you define a key as a number or a symbol, it will be converted to a string i...

Important Array Methods In JavaScript

Mar 13, 2024 · 5 min read · Array: JavaScript arrays are resizable and can contain mix of different data types. Array elements are accessed using their indices. Index starts from 0. Javascript array-copy operation create shallow copies which means it shares the reference po...