---
title: "Rohit Ingale (@rohit0667) | Hashnode"
description: "Rohit Ingale (@rohit0667) writes on Hashnode. Read their latest articles and follow their work."
url: "https://hashnode.com/@rohit0667"
---

@rohit0667

# Rohit Ingale

@rohit0667 · Joined December 2025

### [Async Code in Node.js: Callbacks and Promises](https://javascript-insights-by-rohit.hashnode.dev/async-code-in-node-js-callbacks-and-promises?utm_source=hashnode&utm_medium=feed)

Why does the Asynchronous code Exists? The best word statement that clarifies this question is the JavaScript is single Threaded and the Internet is slow. So , for example if there is a API call to

6 min read · [javascript-insights-by-rohit.hashnode.dev](https://javascript-insights-by-rohit.hashnode.dev/async-code-in-node-js-callbacks-and-promises?utm_source=hashnode&utm_medium=feed)

[Apr 26](https://hashnode.com/posts/async-code-in-node-js-callbacks-and-promises/69ee151e3d6a492cdd05b5d0)

### [Spread vs Rest Operators in JavaScript](https://javascript-insights-by-rohit.hashnode.dev/spread-vs-rest-operators-in-javascript?utm_source=hashnode&utm_medium=feed)

In JavaScript, the spread operator (...) expands values (breaks them apart), while the rest operator (...) collects values (packs them together). They look identical but behave oppositely depending on

5 min read · [javascript-insights-by-rohit.hashnode.dev](https://javascript-insights-by-rohit.hashnode.dev/spread-vs-rest-operators-in-javascript?utm_source=hashnode&utm_medium=feed)

[Apr 26](https://hashnode.com/posts/spread-vs-rest-operators-in-javascript/69ee0b533d6a492cddfe8e61)

### [String Polyfills](https://javascript-insights-by-rohit.hashnode.dev/string-polyfills?utm_source=hashnode&utm_medium=feed)

What String methods are The string methods are the built in methods of the strings that are used while manipulating and accessing the strings. these methods are related to the string.prototype . toUp

3 min read · [javascript-insights-by-rohit.hashnode.dev](https://javascript-insights-by-rohit.hashnode.dev/string-polyfills?utm_source=hashnode&utm_medium=feed)

[Apr 23](https://hashnode.com/posts/string-polyfills/69e9b4c48991b5ba15991b18)

### [The "new" Keyword](https://javascript-insights-by-rohit.hashnode.dev/the-new-keyword?utm_source=hashnode&utm_medium=feed)

Introduction The "new" keyword is a very famous and useful keyword that helps the constructor functions of the of class it is used to create the instances of the classes while creating the object . We

2 min read · [javascript-insights-by-rohit.hashnode.dev](https://javascript-insights-by-rohit.hashnode.dev/the-new-keyword?utm_source=hashnode&utm_medium=feed)

[Apr 23](https://hashnode.com/posts/the-new-keyword/69e99ce98991b5ba15870225)

### [LINUX File System Findings](https://javascript-insights-by-rohit.hashnode.dev/linux-file-system-findings?utm_source=hashnode&utm_medium=feed)

Everything in Linux is a File The phrase "Everything in Linux is a File" is a cornerstone of the operating system's philosophy. But what does that actually look like when you stop reading textbooks an

4 min read · [javascript-insights-by-rohit.hashnode.dev](https://javascript-insights-by-rohit.hashnode.dev/linux-file-system-findings?utm_source=hashnode&utm_medium=feed)

[Apr 22](https://hashnode.com/posts/linux-file-system-findings/69e890545d1c10710511d9b0)