Labeled break and continue in Javascript - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a labeled break in JavaScript?

A labeled break lets you exit a specific outer loop or block by naming it. It stops the loop with the given label instead of just the innermost loop.

beginner

How does a labeled continue work?

A labeled continue skips the current iteration of the labeled loop and moves to the next iteration of that loop, even if it is an outer loop.

beginner

Syntax example: How do you write a labeled break in JavaScript?

You write a label followed by a colon before the loop, then use break labelName; inside the loop to break out of it.

intermediate

Why use labeled break or continue instead of normal break or continue?

They help control outer loops directly from inner loops, making it easier to stop or skip iterations in nested loops without extra flags or complicated logic.

intermediate

Can you use labeled break or continue with any block, or only loops?

Labeled break can be used with any block, but labeled continue only works with loops.

What does a labeled break do in JavaScript?

A Exits the labeled loop or block immediately

B Skips the current iteration of the labeled loop

C Restarts the labeled loop from the beginning

D Pauses the labeled loop temporarily

A labeled break immediately exits the loop or block with the given label.

Which statement is true about labeled continue?

A It only works with if statements

B It exits the labeled loop completely

C It restarts the entire program

D It skips the current iteration of the labeled loop

Labeled continue skips the current iteration of the labeled loop and moves to the next iteration.

How do you define a label in JavaScript?

A labelName -> statement

B labelName: followed by a statement or loop

C labelName() { }

D labelName = statement

Labels are defined by writing the label name followed by a colon before a statement or loop.

Can labeled continue be used outside loops?

A No, only inside loops

B Yes, anywhere

C Only inside functions

D Only inside if statements

Labeled continue only works with loops, not with other blocks.

Why might you use labeled break in nested loops?

A To restart the inner loop

B To skip one iteration of the inner loop

C To exit an outer loop directly from an inner loop

D To pause the outer loop

Labeled break lets you exit an outer loop directly from inside an inner loop.

Explain how labeled break and continue work in JavaScript and when you might use them.

Think about controlling outer loops from inner loops.

Write a simple example using a labeled break to exit an outer loop from inside an inner loop.

Use a label before the outer loop and break with that label inside the inner loop.