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...
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...
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...
Have you ever wondered what happens behind the scenes when your JavaScript code comes to life on the browser? The JavaScript runtime is the environment where the whole magic happens. It provides all the necessary components for executing the Javascri...
In JavaScript, the Object.create() method is different from the other object creation methods because it allows prototype-based inheritance explicitly and provides fine control over the created object's prototype and properties. Here's how it stands ...
Preparing for a JavaScript interview can be daunting, given the vastness of the language and its applications. To help you get ready, I have compiled a comprehensive list of the most commonly asked JavaScript interview questions, grouped by topic. Wh...
Difference and Deep Dive intolet, var, const Closure Hoisting Shallow Copy vs Deep Copy Call, Apply, Bind Methods Callback Functions, Async Await, Promises Callback Hell Promise Methods like.all(), .allSettled(), .any(), .race() ECMAScript (E...
What is Javascript javascript is scripting or programming language that allow add to complex feature in web page such as dynamically updating content, controlling multimedia, animated images. Data Types in Javascript There are 2 kind of data type in ...
console.log("5" > "11") =>true console.log("5" > 11) =>false console.log(" " > -1) =>true console.log("you " > 1) =>false Ans: for string letter by letter comparison takes place, when values of different types are compared, and they get converted int...
These keywords are used to declare the variable in javascript. before ES6 we could declare variables by using only the var keyword but in ES6 let and const are introduced these have distinct roles. TDZ(Temporal Dead Zone) - it's the area before the d...
