The for loop is an iterative statement which you use to check for certain conditions and then repeatedly execute a block of code as long as those conditions are met. We're only going to look at JavaScript in this article, and we'll look at its syntax and some examples. In other words, loops let your code execute one or more statements as many times as desired.Īgain, there are many types of loops, but we will only look at the for loop in this article.Īlmost every high-level programming language, including JavaScript, has a for loop.

Loops are computer programs that execute a set of instructions or a block of code a certain number of times without having to write it again until a certain condition is met. We'll also keep in mind that there are several types of loops, each of which performs a specific function even though they can almost all perform the same common function.

Use it to loop over iterable objects (Arrays.

In this article, we will learn what for loops are, how they work, and why we use them. for-of is a new loop in ES6 that replaces both for-in and forEach() and supports the new iteration protocol. Loops are a programming concept that we constantly encounter and implement as JavaScript developers.Īnd many developers are familiar with loops, but not everyone understands how they work and why or when they should use a specific type of loop.

Javascript for loop