While Loop Syntax In Javascript

Learn how to use the while statement to create a loop that executes a block as long as a condition is true. See the syntax, a flowchart and an example of outputting odd numbers between 1 and 10.

An expression evaluated before each pass through the loop. If this condition evaluates to true, statement is executed. When condition evaluates to false, execution continues with the statement after the while loop. statement. A statement that is executed as long as the condition evaluates to true. You can use a block statement to execute

Basic Syntax. Here's what a while loop looks like in its simplest form while condition code to be executed Let's break this down The while keyword tells JavaScript that we want to start a while loop. The condition is a boolean expression that's evaluated before each iteration of the loop. If the condition is true, the code inside the

Learn how to use the while loop to execute a block of code as long as a condition is true. See the syntax, examples and exercises for the while loop and its variant, the do while loop.

Do-While loop . A Do-While loop is another type of loop in JavaScript that is similar to the while loop, but with one key difference the do-while loop guarantees that the block of code inside the loop will be executed at least once, regardless of whether the condition is initially true or false . Syntax

The loop do..while repeats while both checks are truthy The check for num lt 100 - that is, the entered value is still not greater than 100. The check ampamp num is false when num is null or an empty string. Then the while loop stops too. P.S. If num is null then num lt 100 is true, so without the 2nd check the loop wouldn't stop if the user

JavaScript while Loop. The most basic loop in JavaScript is the while loop which would be discussed in this chapter. The while loop is an entry-controlled loop. The purpose of a while loop is to execute a statement or code block repeatedly as long as an expression is true. Once the expression becomes false, the loop terminates. Flow Chart

The JavaScript while and dowhile 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 dowhile loops with examples.

Syntax of the while Loop while condition Code to be executed condition The loop continues as long as this expression evaluates to true. The loop's body is enclosed in curly braces and will execute each time the condition is true. Example 1 Basic while Loop. Let's start with a simple example that prints numbers from 1 to 5

In this example, the loop will run 5 times, outputting the numbers 0 through 4. The condition count lt 5 is checked before each iteration, and the loop continues as long as it's true. Practical Applications of While Loops. While loops are incredibly versatile and can be used in various scenarios. Let's explore some practical applications 1.