Utilizor
Contact Us

JavaScript For Loop - Complete Guide with Examples

Master JavaScript for loops with comprehensive examples and best practices for iterating through code blocks efficiently.

JavaScript For Loop

Loops are essential programming constructs that allow you to execute a block of code multiple times. The for loop is one of the most commonly used loops in JavaScript.

Why Use Loops?

Loops save time, reduce code repetition, and make your programs more efficient by automating repetitive tasks.

The For Loop Syntax

for (initialization; condition; increment) { // code block to be executed }

Common Use Cases

  • Iterating through arrays
  • Repeating actions a specific number of times
  • Creating patterns and sequences
  • Processing data collections

Note: The for loop is ideal when you know exactly how many times you want to loop through a block of code.

Example

for (let i = 0; i < 5; i++) {
  console.log("Iteration number: " + i);
}
// Output: Iteration number: 0, 1, 2, 3, 4