Javascript Tutorial 13 Javascript While I122adWhwVY

Web Reference: JavaScript is easy to learn. This tutorial covers everything from basic JavaScript up to the latest 2026 version. Start learning JavaScript now » With our Try it Yourself editor, you can edit the source code and view the result. We recommend reading this tutorial, in the sequence listed in the menu. Sep 30, 2025 · 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. The most basic loop in JavaScript is the whileloop 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.

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