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JavaScript Interview Questions - Part 6/220 Stuck on prototype inheritance in coding interviews? Master this 2025 frontend ...

JavaScript IIFE - JavaScript Tutorial for Developers An IIFE (Immediately Invoked Function Expression) is a function expression ...

One small mistake can cause low performance unlock list of common interview questions and answers. prototype and ...

PHP's magic methods vs JavaScript's prototypes - which OOP is more powerful? EPIC!

PERFORMANCE TIP: This ONE trick will save memory in your JavaScript code! Are you putting methods inside constructor ...

A prototype pollution vulnerability where a malicious JSON payload modifies Object.prototype. After the attack, every new object ...

Ever wondered what {}.toString() does in JavaScript? It calls the Object.prototype.toString() method and returns [object Object] for ...

Mind-Blown: Why can EVERY JavaScript object use .toString()? You never created this method... so where does it come from?

Object.create() - JavaScript Tutorial for Developers Creates a new object with a specified prototype. Enables inheritance without ...

IIFE: Immediate Functions - Full JavaScript Tutorial An IIFE (Immediately Invoked Function Expression) is a JavaScript function ...

"Discover how to create more robust instanceof checks in JavaScript, exploring four options from overriding Object.prototype.

Ever wondered what happens when you use the 'new' keyword in JavaScript? This short breaks down the 4 steps JavaScript ...

ES6 Classes make JavaScript OOP so much cleaner! Before ES6, we used messy constructor functions with prototype methods ...

Array Keys Method - Part 30/715 - JavaScript Tutorial for Developers The `Array.prototype.keys()` method returns a new Array ...

Ever wondered how objects can access properties they don't own? That's the PROTOTYPE CHAIN in action! In this short, I'll ...

Grouping data by a key is a very common task in JavaScript. Common approach: Using a plain object and mutating it as you ...

Master the prototype design pattern with a graphical figures example! #java #coding #software #prototype #programming ...

Stop memorizing definitions. Understand the internal lookup mechanism of the JavaScript engine. In this video, we move ...

Calling obj.hasOwnProperty can be unsafe. Object.hasOwn is explicit and avoids prototype pitfalls. Music: “Background Music 2” ...

The RIGHT way to do inheritance in JavaScript! Learn why Object.create() is better than __proto__ for prototype inheritance.