toUpperCase Redirect 1

Summary

The toUpperCase() method returns the calling string value converted to uppercase.

Syntax

str.toUpperCase()

Description

The toUpperCase method returns the value of the string converted to uppercase. toUpperCase does not affect the value of the string itself.

Examples

Example: Using toUpperCase

console.log( "alphabet".toUpperCase() ); // "ALPHABET"

Specifications

Specification Status Comment
ECMAScript 1st Edition. Standard Initial definition.
Implemented in JavaScript 1.0
ECMAScript Language Specification 5.1th Edition (ECMA-262) Standard  
ECMAScript Language Specification 6th Edition (ECMA-262) Draft  

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes) (Yes) (Yes) (Yes) (Yes)
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support (Yes) (Yes) (Yes) (Yes) (Yes) (Yes)

See also

Document Tags and Contributors

 Contributors to this page: Sheppy
 Last updated by: Sheppy,