Here you can find the source of uppercase()
String.prototype.uppercase = function() { return this.toUpperCase() }; /**// w w w . java 2 s . c o m * Convert to camel-case. * * 'hello there'.camelcase * // => 'HelloThere' * * @return {string} * @api public */
String.prototype.upcase = function(){ return this.toUpperCase(); };
String.prototype.upperCaseFirst = function() { return this.replace(/^./, function(a) { return a.toUpperCase(); }); };
String.prototype.upperFirstChar = function() { return this.charAt(0).toUpperCase() + this.slice(1)
String.prototype.upperFirstLetter = function() { return this.charAt(0).toUpperCase() + this.slice(1);
String.prototype.upperInitial = function() { return this.replace(/(^|\s+)\w/g, function(s) { return s.toUpperCase(); }); };
String.prototype.uppercaseFirstLetter = function() { return this.charAt(0).toUpperCase() + this.slice(1); };