The JavaScript while and do…while loops repeatedly execute a block of code as long as a specified condition is true. In this tutorial, you will learn about the JavaScript while and do…while loops with examples.
Nested for Loops A for loop can also have another for loop inside it. For each cycle of the outer loop, the inner loop completes its entire sequence of iterations. For example, // outer loop for (let i = 0; i < 3; i++) { // inner loop for (let j = 0; j < 2; j++)...
You’ll see in the examples how each of these clauses is translated into code. So let’s start right away. Using simpleforloops The most typical way to useforloops is counting. You just need to tell the loop where to start, where to finish, and with what pace to count. This is ho...
The While Loop Thewhileloop loops through a block of code as long as a specified condition is true. Syntax while(condition) { // code block to be executed } Example In the following example, the code in the loop will run, over and over again, as long as a variable (i) is less th...
JavaScript Loops Loops are handy, if you want to run the same code over and over again, each time with a different value. Often this is the case when working with arrays: Instead of writing: text += cars[0] +""; text += cars[1] +""; text += ...
JavaScript Issue No. 6: Incorrect Use of Function Definitions InsideforLoops Consider this code: varelements =document.getElementsByTagName('input');varn = elements.length;// Assume we have 10 elements for this examplefor(vari =0; i < n; i++) { elements[i].onclick=function() {console....
Examples of using for…of Loops in JavaScript Now that we have shown you the syntax of the for…in loop, let us explore how to use it in JavaScript. Over the following sections, we will explore several different ways of utilizing this type of loop. ...
Example of the do while Loops in JavaScript Now that we know the syntax of the do while loop, let us explore some examples of using it in JavaScript. Both of these examples will be reasonably similar but will show different ways that you can utilize this kind of loop. ...
In this article, we’ll learn about theforloop JavaScript provides. We’ll look at howfor...inloop statements are used in JavaScript, the syntax, examples of how it works, when to use or avoid it, and what other types of loops we can use instead. ...
Old examples has type="text/javascript" in the tag. This is no longer required. JavaScript is the default scripting language in all modern browsers and in HTML5. 2. 若是想要操作一个 HTML 元素, 可以使用 document.getElementById(id) 方法来获取, 其中的 "id" 来决定是哪一个 HTML 元素. <...