JavaScript String toLocaleUpperCase() Method
Example
Convert the string to uppercase letters:
var str = "Hello World!";
var res = str.toLocaleUpperCase();
Try it Yourself »
Definition and Usage
The toLocaleUpperCase() method converts a string to uppercase letters, according to the host's current locale.
The locale is based on the language settings of the browser.
Generally, this method returns the same result as the toUpperCase() method. However, for some locales, where language conflict with the regular Unicode case mappings occurs (such as Turkish), the results may vary.
Note: The toLocaleUpperCase() method does not change the original string.
Tip: Use the toLocaleLowerCase() method to convert a string to lowercase letters, according to the host's current locale.
Browser Support
| Method | |||||
|---|---|---|---|---|---|
| toLocaleUpperCase() | Yes | Yes | Yes | Yes | Yes |
Syntax
string.toLocaleUpperCase()
Parameters
| None. |
Technical Details
| Return Value: | A String, representing the value of a string converted to uppercase according to the host's current locale |
|---|---|
| JavaScript Version: | ECMAScript 1 |
