TypeScript is not a new language.It’s JavaScript with guardrails. If JavaScript lets you drive fast, TypeScript adds seatbelts, lane markings, and a dashboard that warns you before the engine explodes. This blog is written so you can: No theory overdose. No academic detours. What is TypeScript (in one paragraph)? TypeScript…
Javascript
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HashMap in JavaScript: The Fastest Way to Store and Find Data
If arrays are like notebooks where you flip pages one by one, hashmaps are like a magic index. You whisper a key, and the value appears instantly. No searching. No looping. Just speed ⚡ In JavaScript, we use hashmaps all the time, often without even realizing it. Let’s understand what…
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Explain Set vs Map vs plain Object in JS
Alright — here’s a clear breakdown of how Set, Map, and plain Object differ in JavaScript. 1. Set Example: When to use: 2. Map Example: When to use: 3. Object Example: When to use: Quick Comparison Table Feature Set Map Object Stores Values only Key–Value pairs Key–Value pairs Keys type…
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What is new Set(); in JavaScript
In JavaScript, creates a Set object, which is a built-in collection type that stores unique values — meaning no duplicates are allowed. Key points about a Set in JS Example Common Use Cases