`break`

Terminates the nearest enclosing loop or switch, optionally to a label.

Syntax

break;
break label;

for (let i = 0; i < 10; i++) {
  if (i === 3) break;
  console.log(i);
}

Output

0
1
2

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

Output

0 0

const x = 2;
switch (x) {
  case 2:
    console.log("two");
    break;
  default:
    console.log("other");
}

Output

two

- Without a label, `break` exits only the innermost loop or `switch`. - A labeled `break` can exit an outer loop from within nested loops.