Jul 27, 2025 · 3 min read · A 25-year-old bug that still fools millions of developers. 🧠 The Confusing Line of Code If you've ever typed this into your console: console.log(typeof null); // "object" You probably paused for a second. Wait... isn’t null supposed to mean noth...
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May 23, 2025 · 3 min read · Ever wanted to know what kind of value a variable holds in JavaScript? That’s where the typeof operator comes in. It tells you the type of any value or variable. But... sometimes it lies. 😅Let’s break it all down: what typeof gives you, what’s true,...
Join discussionApr 15, 2025 · 4 min read · ✅ 1. 🔍 What is typeof? The typeof operator is used to get the type of a value as a string. typeof 123 // 'number' typeof "hello" // 'string' typeof true // 'boolean' typeof {} // 'object' Syntax: typeof operand // or typeof(oper...
Join discussionMar 5, 2025 · 3 min read · Hi Friends! Kamon acho! Q: What does it mean that JavaScript is dynamically typed? Ans: In JavaScript, you can assign a value of one type to a variable and later assign a different type. let name = "Padmanava"; name = 42; // No error Number & Big...
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Dec 27, 2024 · 3 min read · Keyof Operator The keyof operator in TypeScript is used to create a union type of all the keys of a given object type. This allows developers to dynamically reference the keys of an object, enhancing type safety and reducing errors in code. For examp...
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Aug 6, 2024 · 2 min read · JavaScript is full of quirks, and one of the most puzzling is the treatment of null. While the official ECMAScript specification defines null as a primitive value, using the typeof operator reveals a surprising result: it returns "object". This appar...
Join discussionApr 6, 2024 · 3 min read · typeof operator is used to get type of (I'd prefer to say Shape of) operand. If you want to learn about typeof in reference to Javascript then you can visit typeof operator in javascript. Syntax of typeof operator in Typescript Typescript typeof oper...
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Apr 6, 2024 · 4 min read · Do you actually know how to use typeof in Javascript?Do you now what are typeof operator capabilities? Well, we are going to explore typeof in depth. 💡 Do you know typeof is not specific to Typescript. It was already an operator in Javascript. ty...
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Feb 28, 2023 · 3 min read · In yesterday's lesson, we covered the concepts of Implicit, Explicit, Nominal, Structuring, and Duck Typing in JavaScript. We delved deep into each of these terms and provided some useful references for further study. If you missed that article, you ...
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