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Upper case a string

Upper Case

Upper case a string.

Supports Unicode (non-ASCII characters) and non-string entities, such as objects with a toString property, numbers and booleans. Empty values (null and undefined) will result in an empty string.

npm install upper-case --save
var upperCase = require('upper-case')
upperCase(null)           //=> "" 
upperCase('string')       //=> "STRING" 
upperCase('string', 'tr') //=> "STRİNG" 
upperCase({ toString: function () { return 'test' } }) //=> "TEST" 

Includes a TypeScript definition.