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Error Handling in JavaScript

7h ago · 4 min read · What are Errors in JavaScript? Errors in JavaScript are issues that occur during the execution of your code. These are typically categorized as: Syntax Errors – Mistakes in code structure (caught bef

RKRajesh Kumarrajesh71webdev.hashnode.dev

String Polyfills and Common Interview Methods in JavaScript

2h ago · 8 min read · As a web developer, 90% of what you do involves manipulating text. Whether you are formatting a user's name, checking if a password contains a special character, or extracting a domain name from a URL

String Polyfills and Common Interview Methods in JavaScript

5h ago · 3 min read · Introdcution Strings are everywhere in JavaScript—user input, API responses, UI rendering, logs, and more. Yet many developers rely on built-in methods without truly understanding how they work under

Map and Set in JavaScript

6h ago · 4 min read · What is Map? Map is a collection of keyed data items, just like an Object. But the main difference is that Map allows keys of any type. Example const userMap = new Map(); userMap.set('name', 'Rocky');

JDJyoti Dwivedijs-learn-fun.hashnode.dev

Spread vs Rest Operators in JavaScript

19h ago · 13 min read · The Pizza Party Paradox 🍕 Last Friday, my team ordered pizza for a hackathon. We had a problem: The Situation: 5 different pizza boxes 1 giant serving table Everyone wanted to grab slices from all

Callbacks in JavaScript

1d ago · 3 min read · What is a Callback Function? A callback function is a function passed into another function as an argument, which is then invoked inside the outer function to complete some kind of routine or action.

Array Flatten in JavaScript

1d ago · 3 min read · Flattening arrays is one of those concepts that looks simple—but shows up in interviews, real-world data handling, and problem-solving all the time. What are Nested Arrays? A nested array is simply an

Template Literals in JavaScript

1d ago · 3 min read · Introduction Working with strings is something every JavaScript developer does daily. But if you’ve ever used + for concatenation, you know how messy things can get. That’s where template literals com

RKRajesh Kumarrajesh71webdev.hashnode.dev

Array Flatten in JavaScript

1d ago · 6 min read · Imagine you are moving into a new house. You open a large moving box labeled "Kitchen," only to find three smaller boxes inside. You open one of those smaller boxes, and inside are two even smaller bo

MAMohd Abrardevwithabrar.hashnode.dev

Master the 🐧 Linux Filesystem: Inspect /boot, /etc, /dev, /var and More

1d ago · 4 min read · If you really want to understand a system running on Linux, you don’t always need fancy tools. Sometimes… all you need is curiosity and the filesystem. Linux follows a powerful philosophy: “everything