The real reason why JavaScript has arrow functions

The real reason why JavaScript has arrow functions Nowadays, all my code is based on the use of arrow functions. If you are still not using them yourself, then don’t be ashamed of who you are. That’s your parent’s job. Instead, find about all the benefits that you can get by using arrow functions like the cool kids. You may notice that the code is shorter and that there is an arrow. Everything before the arrow is arguments of the function and everything after the arrow is always returned as the result of the function.

Nowadays, all my code is based on the use of arrow functions. If you are still not using them yourself, then don’t be ashamed of who you are. That’s your parent’s job. Instead, find about all the benefits that you can get by using arrow functions like the cool kids.

This is an example of arrow function and the same code written traditionally:

const arrowFunction = (arg1, arg2) => arg1 + arg 2;

const traditionalFunction = function(arg1, arg2) {
  return arg1 + arg2;
};

You may notice that the code is shorter and that there is an arrow. Everything before the arrow is arguments of the function and everything after the arrow is always returned as the result of the function.

If you need a function that contains multiple statements you can still do this:

const arrowFunction = (arg1, arg2) => {
  const result = arg1 + arg2;
  return result;
};

javascript js functional-javascript functional-programming javascript-tips

Functional programming(FP) is a programming paradigm where we think of code as a function. How fun is that everything is a function. Functional programming is not a new concept but it is gaining its popularity, Even Object-oriented programming languages are trying to have functional concepts. For eg: Lambda functions in Java.

Who else loves to write side-effects-free functions? I think we, as programmers, all do. Today, in this story, I will walk you through the basic principles of functional programming that will make your coding life easier.

In this post, I will explain why declarative code is better than imperative code. Then I will list some techniques to convert imperative JavaScript to a declarative one in common situations.

The mystic term of Functional Programming (FP) must be familiar to any JS developer. The first impression when we say “JS supports functional programming paradigm”.

<p>Other then the syntactical differences. The main difference is the way the this keyword behaves? In an arrow function, the this keyword remains the same throughout the life-cycle of the function and is always bound to the value of this in the...