.

Keeping this in consideration, what is the purpose of arrow functions?

Arrow functions are anonymous and change the way this binds in functions. Arrow functions make our code more concise, and simplify function scoping and the this keyword. They are one-line mini functions which work much like Lambdas in other languages like C# or Python. (See also lambdas in JavaScript).

Secondly, what is difference between function and arrow function in JavaScript? Arrow functions are callable but not constructable If a function is callable, it can be called without new (i.e. normal function call). Functions created through function declarations / expressions are both constructable and callable. Arrow functions (and methods) are only callable.

Accordingly, what is difference between Arrow function and normal function?

Unlike regular functions, arrow functions do not have their own this . Arguments objects are not available in arrow functions, but are available in regular functions. Regular functions created using function declarations or expressions are 'constructible' and 'callable'.

What does => mean in node JS?

Node. js (Node) is an open source development platform for executing JavaScript code server-side. Node is useful for developing applications that require a persistent connection from the browser to the server and is often used for real-time applications such as chat, news feeds and web push notifications.