It follows a simple syntax of initializing the initial index, checking the values against a predefined condition, and finally increment/decrement the index until the condition evaluates to false. JavaScript supports five different types of loops, which we will be covering in this article:Ī for loop repeats until a specified condition results false. What are the different types of JavaScript Loops? The basic idea behind a loop is to automate the repetitive tasks within a program to save time and effort. We can depict it with the help of the following diagram:Ī programmer who needs to execute the same lines of code, again and again, can use loops. Each time the question is asked, it is called an iteration. Loop will ask a question if the given answer is satisfied, then it will perform some actions, again it will ask a question, and this repeats until no further action required. The loop will execute the set of code repeatedly until the given condition is satisfied. Loops are one of the most fundamental concepts available in all programming languages. How to write Do-While Loop in JavaScript?.Procedure to write For-Of Loop in JavaScript?.How to write For In Loop in JavaScript?.

What are the different types of Loops provided by JavaScript? What are the loops in programming languages? Let's understand the idea of the loop in JavaScript by going through the following topics in this article: Now to handle these repetitive scenarios, all the programming languages provides the concept of ' loops'. The same is the concept with programming languages, where a particular piece of code needs to execute multiple times to achieve specific tasks. But for that, the user needs to repeat the same task on multiple pages to reach the final result. Now, the task that the user is performing is the same - searching the word. Suppose we consider a scenario that a user is searching for a word in a dictionary, for which the user needs to go through various pages of the glossary to do the same task. In our day to day routine, we have to do multiple tasks repetitively.

For of loop javascript