JavaScript String length

let text = "Hello World!";
let length = text.length;

Description

The length property returns the length of a string.

The length property of an empty string is 0.

string.length

Type	Description
A number	The length of the string.

length is an ECMAScript1 (ES1) feature.

ES1 (JavaScript 1997) is fully supported in all browsers:


Chrome	Edge	Firefox	Safari	Opera	IE
Yes	Yes	Yes	Yes	Yes	Yes