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@NavdeepRohilla

Navdeep Rohilla

@NavdeepRohilla·Joined January 2026

Documenting my journey as a developer.

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Navdeep Rohilla's blogs

JavaScript Journeyjavascript-journey-by-navdeep.hashnode.dev25 posts

Express.jsexpress-js-by-navdeep.hashnode.dev7 posts

Node JS Fundamentalsnode-js-by-navdeep.hashnode.dev5 posts

Authentication & Securityauthentication-and-security-by-navdeep.hashnode.dev2 posts

Git for beginnersgit-for-beginners-by-navdeep.hashnode.dev1 post

About

Nothing here yet.

Available for

Nothing here yet.

Navdeep Rohilla's blogs

JavaScript Journeyjavascript-journey-by-navdeep.hashnode.dev25 posts

Express.jsexpress-js-by-navdeep.hashnode.dev7 posts

Node JS Fundamentalsnode-js-by-navdeep.hashnode.dev5 posts

Authentication & Securityauthentication-and-security-by-navdeep.hashnode.dev2 posts

Git for beginnersgit-for-beginners-by-navdeep.hashnode.dev1 post

Articles Comments

Recently published

NRNavdeep Rohillainjavascript-journey-by-navdeep.hashnode.dev·May 10 · 3 min read

Async Code in NodeJS

1. Why async code exists in Node.js Imagine you ask Node.js to read a file from your disk. That file could be small — or it could be 200MB. Either way, reading it takes time. And while Node.js is wait

NRNavdeep Rohillainjavascript-journey-by-navdeep.hashnode.dev·May 10 · 6 min read

The new keyword in JS

Introduction When you first learn JavaScript, objects feel easy, right? But behind the scenes, one tiny keyword I mean new performs a powerful multi step process. In JavaScript, the new keyword is the

NRNavdeep Rohillainjavascript-journey-by-navdeep.hashnode.dev·May 10 · 8 min read

The this keyword in JS

There’s a moment almost every JavaScript developer goes through at least once. You write a perfectly normal function, call it inside an object, and everything works exactly the way you expect. Then a

NRNavdeep Rohillainjavascript-journey-by-navdeep.hashnode.dev·May 10 · 9 min read

Array Flatten in JS

Introduction In JavaScript, Array Flattening is the process of taking a nested array (an array that contains other arrays) and "unwrapping" those inner arrays into a single, flat list of elements. Thi

NRNavdeep Rohillainjavascript-journey-by-navdeep.hashnode.dev·May 10 · 5 min read

String Polyphils and common Interview Methods

Introduction In modern web development, strings are everywhere. Example usernames, search inputs, messages, product names, URLs, and more. Almost every application you build involves processing, trans