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@NavdeepRohilla

Navdeep Rohilla

@NavdeepRohilla

Documenting my journey as a developer.

Joined January 2026

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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

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NRNavdeep Rohillainjavascript-journey-by-navdeep.hashnode.dev

Async Code in NodeJS

6d ago · 3 min read · 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

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NRNavdeep Rohillainjavascript-journey-by-navdeep.hashnode.dev

The new keyword in JS

6d ago · 6 min read · 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

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NRNavdeep Rohillainjavascript-journey-by-navdeep.hashnode.dev

The this keyword in JS

6d ago · 8 min read · 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

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NRNavdeep Rohillainjavascript-journey-by-navdeep.hashnode.dev

Array Flatten in JS

6d ago · 9 min read · 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

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NRNavdeep Rohillainjavascript-journey-by-navdeep.hashnode.dev

String Polyphils and common Interview Methods

6d ago · 5 min read · 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

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