What are the ways we can break out of a loop in JavaScript?
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Here is a for loop:
const list = ['a', 'b', 'c']
for (let i = 0; i < list.length; i++) {
}
We can break at any point in time the execution using the break
keyword:
const list = ['a', 'b', 'c']
for (let i = 0; i < list.length; i++) {
if (list[i] === 'b') break
console.log(list[i])
}
break
also works in for..of loops:
const list = ['a', 'b', 'c']
for (const item of list) {
if (item === 'b') break
console.log(item)
}
And in while:
const list = ['a', 'b', 'c']
let i = 0
while (i < list.length) {
if (i === 'b') break
console.log(list[i])
i++
}
The continue
keyword lets us skip one iteration, in the for
and for..of
and while
loops. The loop does end that iteration, and will continue from the next one.
A for..in
loop can’t use break. It’s not possible to end it in this way.
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