While loop in JavaScript

JavaScript’s while loop syntax is similar to Python’s. It starts with the keyword while, followed by a condition enclosed in parentheses. The loop continues executing as long as the condition evaluates to true.

Javascript

let count = 0;
while (count < 5) {
    console.log(count);
    count++;
}

Output

Explanation: This JavaScript code initializes a variable count with the value 0. The while loop iterates as long as count is less than 5. Inside the loop, the current value of count is logged to the console using console.log(), and then count is incremented by 1 using the ++ operator.

Working: Similar to Python, the loop starts with count equal to 0. It logs the value of count to the console (which is 0) and then increments count to 1. This process repeats until count reaches 5, at which point the loop terminates.

While loop in Programming

While loop is a fundamental control flow structure in programming, enabling the execution of a block of code repeatedly as long as a specified condition remains true. While loop works by repeatedly executing a block of code as long as a specified condition remains true. It evaluates the condition before each iteration, executes the code block if the condition is true, and terminates when the condition becomes false. This mechanism allows for flexible iteration based on changing conditions within a program.

In this post, we will explore the while loop, its syntax, functionality, and applications across various programming domains.

Table of Content

What is While Loop?
While Loop Syntax
How does While Loop work?
While Loop in Different Programming Languages
While loop in Python
While loop in JavaScript
While loop in Java
While loop in C
While loop in C++
While loop in PHP
While loop in C#
Use Cases where While Loop is Used
While Loop vs Other Loops

While loop in JavaScript

While loop in Programming

Similar Reads