Creating functions in JavaScript - Part 3

Create a function that prints the current date and time using function declaration, function expression, and arrow function.

Function declaration

function getDate () {
  console.log(new Date());
};

getDate();

Arrow function

const getDate = () => { console.log(new Date)};

getDate();

Function expression

const getDate = function () {
  console.log(new Date());
};

getDate();

> Fri Apr 12 2024 10:44:38 GMT+0100 (West Africa Standard Time)

Comments

[Bruno]

Also, would be worth telling which type of function is it, because readers who don’t know any other way of defining functions, will think this is the standard, and it might be nowadays (if we talk modern ES - EcmaScript), but you can also define them with the function keyword.

[Chinwendu Agbaetuo]

Hello Bruno, thanks for your feedback and for dropping your insights.

[Harry]

Very nice. You could also define the function in one line by doing this:

const getDate = () => console.log(new Date());

getDate();

A function body composed of a single-line block doesn't need curly braces! 😍

[Chinwendu Agbaetuo]

That's correct, thanks for your valuable feedback.

[Bruno]

Exactly 👍 you don’t need a return statement on an arrow function which has only one line of code inside the block, or in this case when you can define all the logic like that.