Here you can find the source of capitalize()
String.prototype.capitalize = function() { return this.charAt(0).toUpperCase() + this.slice(1); }
String.prototype.capitalise = function() { return this.replace(this.substr(0,1),this.substr(0,1).toUpperCase());
String.prototype.capitalise = function() { var input = this; var capitalisedString = input.replace(input, input.charAt(0).toUpperCase() + input.substr(1).toLowerCase()); return capitalisedString;
String.prototype.capitaliseFirstLetter = function() { return this.charAt(0).toUpperCase() + this.toLowerCase().slice(1);
String.prototype.capitaliseFirstLetter = function() { return this.charAt(0).toUpperCase() + this.slice(1); String.prototype.isBlank = function() { return (this.trim() == "");
String.prototype.capitaliseFirstLetter = function() return this.charAt(0).toUpperCase() + this.slice(1); };
String.prototype.capitalize = function() { return this.replace(/(?:^|\s)\S/g, function(a) { return a.toUpperCase(); }); };
String.prototype.capitalize = function() { return this[0].toUpperCase() + this.slice(1);
String.prototype.capitalize = function () { return this.charAt(0).toUpperCase() + this.slice(1).toLowerCase();
String.prototype.capitalize = function() { return this.slice(0, 1).toUpperCase() + this.slice(1).toLowerCase(); };