@ashudotdev

Ashutosh

@ashudotdev

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19 , app dev , web dev , fafo

localhost:5173Joined December 2025

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Ashutosh's blogs

Ashutosh Singhblog.ashu.fun28 posts

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AAshutoshblog.ashu.fun

Understanding the this Keyword in JavaScript

Mar 26 · 4 min read · The Core Idea (Don’t Skip This) Forget all definitions. Just remember: this = who is calling the function Everything else comes from this. The Problem (Why this Feels Confusing) Same function… diff

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AAshutoshblog.ashu.fun

Map and Set in JavaScript — Stop Overusing Objects & Arrays

Mar 26 · 4 min read · The Problem (Why Objects & Arrays Aren’t Always Enough) You already use: Objects → key-value storage Arrays → list of values But they have limitations. Object Problem const obj = {}; obj[1] = "on

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AAshutoshblog.ashu.fun

Destructuring in JavaScript — Write Less, Read More

Mar 26 · 3 min read · The Problem (Before Destructuring) You have an object: const user = { name: "Ashu", age: 18, city: "Delhi" }; Accessing values: const name = user.name; const age = user.age; const city = user.c

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JavaScript Promises Explained for Beginners

Mar 26 · 4 min read · The Problem (Before Promises) Let’s say you want to: Fetch data Process it Show result With callbacks: fetchData(function (data) { processData(data, function (result) { display(result); }

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Synchronous vs Asynchronous JavaScript — How JS Actually Runs Your Code

Mar 26 · 4 min read · The Starting Point (How JavaScript Executes Code) JavaScript runs code line by line. One task at a time. This is called synchronous execution. What is Synchronous Code? Synchronous means: “Execute o

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Ashutosh

About

Available for

Ashutosh's blogs

Recently published

Understanding the this Keyword in JavaScript

Map and Set in JavaScript — Stop Overusing Objects & Arrays

Destructuring in JavaScript — Write Less, Read More

JavaScript Promises Explained for Beginners

Synchronous vs Asynchronous JavaScript — How JS Actually Runs Your Code

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Ashutosh

About

Available for

Ashutosh's blogs

Recently published

Understanding the this Keyword in JavaScript

Map and Set in JavaScript — Stop Overusing Objects & Arrays

Destructuring in JavaScript — Write Less, Read More

JavaScript Promises Explained for Beginners

Synchronous vs Asynchronous JavaScript — How JS Actually Runs Your Code