Variable naming style converters via camelCase one

gistfile1.txt

String.prototype.toCamelCase = function() {
  return this.substr(0, 1).toLowerCase() + this.substr(1).replace(/[\-_][a-z]/g, function($0){return $0.toUpperCase().replace(/[\_\-]/,'');});
};
String.prototype.toPascalCase = function() {
	return this.substr(0, 1).toUpperCase() + this.substr(1).toCamelCase();
};
String.prototype.toUnderscore = function() {
	return this.toCamelCase().replace(/[A-Z]/g, function($0){return "_"+$0.toLowerCase();}).replace(/^_/,'');
};
String.prototype.toDash = function() {
	return this.toCamelCase().replace(/[A-Z]/g, function($0){return "-"+$0.toLowerCase();}).replace(/^\-/,'');
};