JavaScript: label statement

Last update on August 19 2022 21:50:38 (UTC/GMT +8 hours)

Description

Label statement provides an identifier for a statement that lets you refer to it using a break or continue statement.

Syntax

label :
statements

Parameters

label: Any JavaScript identifier that is not a reserved word.

statements: Group of statements. "Break" can be used with any labeled statement, and "continue" can be used with looping labeled statements.

Example:

The following web document demonstrates how label statement can be used.

HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset=utf-8>
<title>JavaScript label statement :  Example-1</title>
</head>
<body>
<h1 style="color: red">JavaScript : label statement</h1>
<script src="label-statement-example1.js"></script>
</body>
</html>

JS Code

labelmark:
for(x=0; x<6; x++)
{
var newParagraph1 = document.createElement("p");
var newText1 = document.createTextNode("The value of x is : " +x);
newParagraph1.appendChild(newText1);
document.body.appendChild(newParagraph1);
if(x==3)
{
break labelmark;
}
}
var newParagraph1 = document.createElement("p");
var newText1 = document.createTextNode("The last value of x is : " +x);
newParagraph1.appendChild(newText1);
document.body.appendChild(newParagraph1);

View the example in the browser

Practice the example online

See the Pen label-1 by w3resource (@w3resource) on CodePen.

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