JavaScript String toLocaleUpperCase()

❮ Previous JavaScript String Reference Next ❯

Example

Convert to uppercase:

let text = "Hello World!";
let result = text.toLocaleUpperCase();

Try it Yourself »

Description

The toLocaleUpperCase() method converts a string to uppercase letters, using current locale.

The locale is based on the language settings of the browser.

The toLocaleUpperCase() method does not change the original string.

The toLocaleUpperCase() returns the same result as toUpperCase(), except for locales that conflict with the regular Unicode case mappings (such as Turkish).

Syntax

string.toLocaleUpperCase()

Parameters

NONE

Return Value

Type	Description
A string.	A new string converted to uppercase according to current locale.

JavaScript Strings

JavaScript String Methods

JavaScript String Search

Browser Support

toLocalUpperCase() 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