The break statement exits a loop immediately:
for (let i = 0; i < 10; i++) {
if (i === 5) {
break // Exit when i is 5
}
console.log(i)
}
// Prints: 0, 1, 2, 3, 4
Use break when you find what you're looking for and don't need to continue:
for (let item of items) {
if (item === target) {
console.log("Found!")
break
}
}