JavaScript Break

The Break Statement

You have already seen the break statement used in an earlier chapter of this tutorial. It was used to "jump out" of a switch() statement.

The break statement can also be used to jump out of a loop.  

The break statement breaks the loop and continues executing the code after the loop (if any):

for (i = 0; i < 10; i++) {
    if (i === 3) { break; }
    text += "The number is " + i + "<br>";
}

The Continue Statement

The continue statement breaks one iteration (in the loop), if a specified condition occurs, and continues with the next iteration in the loop.

This example skips the value of 3:

for (i = 0; i < 10; i++) {
    if (i === 3) { continue; }
    text += "The number is " + i + "<br>";
}

JavaScript Labels

To label JavaScript statements you precede the statements with a label name and a colon:

Example :

label:
statements

The continue statement (with or without a label reference) can only be used to skip one loop iteration.

The break statement, without a label reference, can only be used to jump out of a loop or a switch.

With a label reference, the break statement can be used to jump out of any code block:

var cars = ["BMW", "Volvo", "Saab", "Ford"];
list: {
    text += cars[0] + "<br>"; 
    text += cars[1] + "<br>"; 
    break list;
    text += cars[2] + "<br>"; 
    text += cars[3] + "<br>"; 
}