break and continue

JavaScript · Unit 3: Loops

break leaves the loop right then, even if rounds are left.

The program carries on with whatever comes after the loop.

for (let n = 1; n < 10; n++) {
  if (n === 4) {
    break;
  }
  console.log(n);
}
console.log("Done");

Prints

1
2
3
Done

The rest of the explanation is in the lesson, which is part of the full plan.

Exercises in this lesson

You do them in the app, which checks them on the spot and explains why.

1. Predict the output
What does this code print?
2. Multiple choice
What does break do?
3. Predict the output
What does this code print?
4. Complete the code
Complete this to print 1 to 7, skipping the multiples of 3.
5. Predict the output
This code looks for the first number whose square goes past 50. What does it print?
6. Find the bug
This program should print only the first multiple of 7 greater than 30. Which line has the error?
7. Put the lines in order
Put the lines in order to print the first multiple of 9 greater than 50 and stop there.
8. Predict the output
You have to guess the 7. The person types 3, then 9 and then 7. What does it print?
9. Multiple choice
What does this code do?

It opens in your browser. This lesson is part of the full plan; the first unit of each course is free.