Break statement in Javascript - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does the break statement do in JavaScript loops?

The break statement immediately stops the loop and exits it, skipping any remaining iterations.

beginner

Can break be used outside of loops in JavaScript?

No, break is used only inside loops (for, while, do-while) or switch statements to exit them early.

intermediate

What happens if you use break inside a nested loop?

The break statement only exits the innermost loop where it is used, not all outer loops.

beginner

Example: What will this code output?<br><pre>for(let i = 0; i < 5; i++) {<br>  if(i === 3) break;<br>  console.log(i);<br>}</pre>

It will print:<br>0<br>1<br>2<br>Because when i becomes 3, the break stops the loop immediately.

beginner

How does break differ from continue in loops?

break stops the entire loop immediately.<br>continue skips only the current iteration and moves to the next one.

What does the break statement do inside a loop?

A Skips the current iteration and continues

B Stops the loop immediately and exits it

C Restarts the loop from the beginning

D Does nothing special

break immediately stops the loop and exits it.

Where can you use the break statement in JavaScript?

A Only inside functions

B Anywhere in the code

C Inside loops and switch statements

D Only inside if statements

break is valid inside loops and switch statements.

What happens if break is used inside nested loops?

A It causes an error

B It exits all loops

C It skips the current iteration

D It exits only the innermost loop

break exits only the loop where it is used, usually the innermost one.

What will this code print?<br>

for(let i=0; i<3; i++) { if(i===1) break; console.log(i); }

A 0

B 0 1

C 1 2

D 0 1 2

When i is 1, break stops the loop, so only 0 is printed.

How is break different from continue?

A <code>break</code> stops the loop; <code>continue</code> skips current iteration

B <code>break</code> skips current iteration; <code>continue</code> stops the loop

C Both do the same thing

D Neither affects the loop

break stops the loop; continue skips only the current iteration.

Explain how the break statement works inside a loop and give a simple example.

Think about when you want to stop repeating something early.

Describe the difference between break and continue in loops.

One stops all, the other skips one.