Untitled Publication

Write

Higher Order Functions in JavaScript

Mar 27, 20244 min read

Event loop in JavaScript

Mar 14, 20243 min read

Promises in JavaScript

Promises will perform asynchronous operations. They were not always part of JavaScript. Callbacks worked together with asynchronous functions to produce desired results in the past. A callback is any function that is a parameter of an async function,...

Mar 28, 20243 min read

Block scope and variable shadowing in JS

Mar 13, 20241 min read

Closures in JavaScript

Mar 13, 20241 min read

Scope Chain & Lexical Environment

Scope : Scope is one of the most important JavaScript concepts. It helps us to understand other concepts such as closures and lexical environment. There are two types of scopes : Global scope Local scope (Block and function scope) Global scope : ...

Mar 11, 20243 min read

UNDEFINED Vs NOT DEFINED in JS

In JavaScript, understanding difference between undefined and not defined can be crucial. JavaScript code execution happens in two phases : MEMORY CREATION PHASE and CODE EXECUTION PHASE. In memory creation phase , the JS skims through whole program ...

Mar 5, 20242 min read

How functions work in JS?

To understand how functions work in JS, lets see how JS works and how code is executed behind the scenes. Execution context: JS is a synchronous single threaded language, means that it executes the code one line at a time and only in specific order,...

Mar 5, 20243 min read

Temporal Dead Zone

let and const these variables were introduced in ES6 as the old var is getting old... Now.. these let and const were block scoped variables unlike var which is global scoped. var scope = 'global'; var ifTrue = true; if (ifTrue) { ...

Oct 5, 20223 min read

Callbacks in Javascript

Functions are called first-class citizens in Javascript which means you can pass it to another function as an argument and this function which you pass as an argument is known as a callback function. function outer(callback){ } outer(function inner...

Oct 5, 20222 min read

Async and Await in JS

Async/Await is basically an extension to promises in Javascript. It acts as a syntactical sugar wrapped around making promises which makes it easier to work with. Using async/await helps developers to read the code in a synchronous way, which allows ...

Oct 5, 20224 min read

Command Palette

Latest articles