pxt-calliope/docs/reference/js/break.md
2016-03-25 16:47:20 -07:00

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# Break
Break statement; exit a for or while loop. #docs #break #language #loop #for #while
### @parent js/language
Exit a [while](/microbit/js/while) or [for](/microbit/reference/loops/for) loop before the loop is complete.
### Touch Develop syntax
**break**
### Example: count to a random number
The following example counts from 0 to a random number from 0-9. When the for loop counter equals the random number (`i = x`), the `break` statement exits the loop:
```
let x = Math.random(10)
for (let i = 0; i < 10; i++) {
if (i == x) {
break
} else {
basic.showNumber(i, 0)
basic.pause(500)
}
}
```
### Lessons
[jailbreak](/microbit/lessons/jailbreak)
### See also
[for](/microbit/reference/loops/for), [while](/microbit/js/while)