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Understanding `break` and `continue` in JavaScript `for` Loops

In this post, we’ll cover how to use the break and continue keywords inside a for loop to control loop execution.

Basic `for` Loop

for (var i = 0; i < 10; i++) {
  console.log(`Current value of i is: ${i}`);
}
console.log(`Final value of i is: ${i}`);  
// Uses `var` so `i` is accessible after the loop

Using `continue`

Purpose: Skip the rest of the current iteration and move to the next one.

for (var i = 0; i < 10; i++) {
  if (i >= 5) {
    continue;   // Skip logging when i is 5 or greater
  }
  console.log(i);
}
console.log(`Final value of i is: ${i}`);
// Output: 0,1,2,3,4 then "Final value of i is: 10"

How It Works

Evaluate if (i >= 5).
When true, continue jumps back to the top, increments i, and skips console.log.
Loop ends when i < 10 becomes false.

Using `break`

Purpose: Exit the loop entirely and move on to the next statement after the loop.

for (var i = 0; i < 10; i++) {
  if (i >= 5) {
    break;   // Stop loop when i reaches 5
  }
  console.log(i);
}
console.log(`Final value of i is: ${i}`);
// Output: 0,1,2,3,4 then "Final value of i is: 5"

How It Works

Evaluate if (i >= 5).
When true, break immediately exits the loop.
No further iterations occur.

Key Differences

continue
- Skips to next iteration
- Loop still runs until its condition is false
break
- Exits loop immediately
- No further iterations

Summary

Use continue to skip the rest of the current iteration.
Use break to stop the loop entirely.
Both help you add conditional control inside loops for cleaner, more efficient code.

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Nested Loops in JavaScript

Basic Arrays in Javascript

`break` and `continue` in JavaScript Loops

In this lesson, you'll use `break` and `continue` in JavaScript `for` loops, empowering you to control loop execution with precision. We'll cover how to efficiently skip iterations or exit loops entirely, enhancing your coding skills and streamlining your JavaScript programs.

5m 54s