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CSSStyleDeclaration

JavaScript String length Property

< JavaScript String Reference

Example

Return the number of characters in a string:

var str = "Hello World!";
var n = str.length;

The result of n will be:

12

Try it Yourself »

Definition and Usage

The length property returns the length of a string (number of characters).

The length of an empty string is 0.

Browser Support

Property
length	Yes	Yes	Yes	Yes	Yes

Syntax

string.length

Technical Details

Return Value:	The length of a string
JavaScript Version:	1.0

< JavaScript String Reference