(…) this operator is known as both spread and rest operator in JavaScript. Yes it is only one operator but it has two names. It depends on how you use these operators. And that’s the most confusing part. When you will call this spread and when you will call this…

From ES6 version of JavaScript; map, filter and reduce function have been introduced in arrays. Which has become essential parts of life for JavaScript programmers. These methods use the functional programming concepts to the arrays. …

Prototype is an important concept of JavaScript. Prototype is a property that points the object. It is used for inheriting property from one object to another. Before class-based structure, this prototype is used for assigning properties to a specific object and passing properties from parent to children object. …

JavaScript has some very features which sometimes makes the newbies scared. One of them is closures. It is one of the unique features of JavaScript. To define closure we can say that, it is a feature where the inner function has the access of the property/variable of the outer function…

Async-Await is a very important feature of JavaScript. By default, all the javaScript operations are synchronous. We use promises to run asynchronous operations. But for building applications, we have to write a lot of promises, which makes code messy and complex. …

In JavaScript, functions are first class objects. Which means they can be passed as arguments, they can have properties and methods like objects. In JavaScript, function are the type of object. They can be stored in variables, created and returned from functions. Callback Callback functions are something that a function returns…

TypeScript is nothing but JavaScript. TypeScript needs to be compiled but JavaScript does not. Also we can store any type of data in a variable in JavaScript but not in TypeScript. JavaScript is cool but typescript is cooler. A cooler feature of typescript is strictly typing. …

JavaScript is a single threaded language. Which means it performs one operation at a time. When it performs an action it does not perform another action unless it finishes it. The behavior is called synchronous blocking behavior. So, synchronous because one task at a time and blocking because of does…

1. Angular Angular is a JavaScript framework for building user interfaces. It is developed by google. Angular and AngularJS are not same. AngularJS was written in JavaScript and was released in 2010. But due to performance issues Angular was released in 2016 and it was written in typescript. Angular Component Angular divides a webpage…