The do while loop is a variant of the while loop. This loop will execute the code block once, before checking if the condition is true, then it will repeat the loop as long as the condition is true. The example below uses a do while loop.

The do...while statements combo defines a code block to be executed once, and repeated as long as a condition is true. The do...while is used when you want to run a code block at least one time. If you use a variable in the condition, you must initialize it before the loop, and increment it within the loop. Otherwise the loop will never end.

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.

Nov 19, 2024 · The while loop executes a block of code as long as a specified condition is true. In JavaScript, this loop evaluates the condition before each iteration and continues running as long as the condition remains true. Here’s an example that prints from 1 to 5.

While Loop. A while loop is best to use when you don't know how many times the code should run.. The while loop is the most intuitive loop type because it resembles many things we do in our every day life:. Keep walking (taking new steps) until you reach your destination. As long as the pot is dirty, continue washing it. Keep filling the tank of the car until it is full.

Let’s take some examples of using the JavaScript while loop statement. The following example uses the while statement to output the odd numbers between 1 and 10 to the console: while (count < 10) { console.log(count); count += 2; Output: How the script works. First, declare and initialize the count variable to 1:

Jun 19, 2022 · Any expression or variable can be a loop condition, not just comparisons: the condition is evaluated and converted to a boolean by while. For instance, a shorter way to write while (i != 0) is while (i): i --; } If the loop body has a single …

JavaScript now supports five different types of loops: while — loops through a block of code as long as the condition specified evaluates to true. do…while — loops through a block of code once; then the condition is evaluated. If the condition is true, the statement is repeated as long as the specified condition is true.

Aug 26, 2021 · In this tutorial, we learned about the while loop, the do...while loop, and infinite loops in JavaScript. Automation of repetitive tasks is an extremely important part of programming, and these loops can help make your programs more efficient and concise.

Learn how to use the while loop in JavaScript with examples and syntax. Understand its workings and best practices for effective coding. Explore the functionality of the while loop in JavaScript.