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Master JavaScript interviews with this in-depth series covering core concepts, tricky questions, coding patterns, and system design — all tailored to help you ace your next tech interview with confidence.
There are many ways to create an object in javascript as below: Object Constructor The simplest ways to create an empty object using the object constructor. var object = new Object(); Note: Currently, this method is not recommended. Object Creat...
Prototype chaining in JavaScript is a mechanism used to implement inheritance by linking objects through their prototypes. If a property or method is not found on an object, the JavaScript engine looks up the chain via the object's [[Prototype]] (acc...
The call(), apply(), and bind() methods in JavaScript are all used to control the this context within functions. They allow you to explicitly set the value of this when calling or preparing to call a function. However, they differ in syntax and behav...
✅ What is JSON? JSON (JavaScript Object Notation) is a lightweight data-interchange format that is: Easy for humans to read and write Easy for machines to parse and generate It is commonly used for: Data storage Data exchange between client and...
Array.slice(): The array.slice() method returns the selected elements starting at the given start argument and ends at the given optional end argument without including the last element. If you omit the second argument then it selects till the end. E...