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JavaScript while Loop (Live Playground)

In this tutorial, we will explore the while loop, and learn how to use it in our code to help perform repetitive tasks.

while Loop​

A while loop is used to execute a block of code as long as a specified condition is true.

Example:

let i = 0;

while (i < 5) {
  console.log(`Iteration ${i + 1}`);
  i++;
}

In the example above, the loop will run as long as i is less than 5, and the output will display the iteration number from 1 to 5.

Live Playground, Try it Yourself

Conclusion​

Understanding and using the while loop is essential for performing repetitive tasks in your JavaScript programs.