break-statement-javascript.md

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break Statement (JavaScript) | Microsoft Docs		01/18/2017	windows-client-threshold			devlang-javascript		language-reference	break_JavaScriptKeyword	JavaScript TypeScript DHTML	do...while statement break statement	5be0f2a8-5fe7-4a6c-89af-ca20a925ce87	23	mikejo5000	mikejo	ghogen

break Statement (JavaScript)

Terminates the current loop, or if in conjunction with a label, terminates the associated statement.

Syntax

break [label];  

Remarks

The optional label argument specifies the label of the statement you are breaking from.

You typically use the break statement in switch statements and in while, for, for...in, or do...while loops. You most commonly use the label argument in switch statements, but it can be used in any statement, whether simple or compound.

Executing the break statement exits from the current loop or statement, and begins script execution with the statement immediately following.

Examples

In this example, the counter is set up to count from 1 to 99; however, the break statement terminates the loop after 14 counts.

for (var i = 1; i < 100; i++) {  
    if (i == 15) {  
        break;  
    }  
    document.write (i);  
    document.write (" ");  
}  
  
// Output: 1234567891011121314  

In the following code, the break statement refers to the for loop that is preceded by the Inner: statement. When j is equal to 24, the break statement causes the program flow to exit that loop. The numbers 21 through 23 print on each line.

Outer:  
for (var i = 1; i <= 10; i++) {  
    document.write ("<br />");  
    document.write ("i: " + i);  
    document.write (" j: ");  
Inner:  
    for (var j = 21; j <= 30; j++) {  
        if (j == 24) {  
            break Inner;  
        }  
        document.write (j + " ");  
    }  
}  
  
// Output:   
// i: 1 j: 21 22 23   
// i: 2 j: 21 22 23   
// i: 3 j: 21 22 23   
// i: 4 j: 21 22 23   
// i: 5 j: 21 22 23   
// i: 6 j: 21 22 23   
// i: 7 j: 21 22 23   
// i: 8 j: 21 22 23   
// i: 9 j: 21 22 23   
// i: 10 j: 21 22 23  
  

Requirements

[!INCLUDEjsv1]

See Also

continue Statement
do...while Statement
for Statement
for...in Statement
Labeled Statement
while Statement