Best of Modern JavaScript — Arrow Functions and New OOP Features

Best of Modern JavaScript — Arrow Functions and New OOP Features

Since 2015, JavaScript has improved immensely. It’s much more pleasant to use it now than ever. In this article, we’ll look at arrow functions and new OOP features in JavaScript.

Since 2015, JavaScript has improved immensely.

It’s much more pleasant to use it now than ever.

In this article, we’ll look at arrow functions and new OOP features in JavaScript.

Return Object Literals with Arrow Functions

If we want to return object literals with a single statement arrow function, we’ve to wrap the object we return with parentheses.

This way, it won’t be confused with blocks.

For example, we can write:

const foo = x => ({ bar: 'baz' });

Then when we call foo() , we get { bar: 'baz' } returned.

Immediately-Invoked Arrow Functions

We can define immediately invoked arrow functions.

For example, we can write:

(() => {
  return 'foo'
})();

to define an arrow function and call it.

We still use semicolons to determine immediately invoked arrow functions.

We’ve to wrap the arrow function with parentheses.

technology web-development javascript software-development programming oop

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