dsibinski/string_prototype_helpers.ts

## string_prototype_helpers.ts
interface String {
    contains(this : string, it : any): boolean;
}

String.prototype.contains = function (it) {
    return this.indexOf(it) != -1;
};
	interface String {
	contains(this : string, it : any): boolean;
	}

	String.prototype.contains = function (it) {
	return this.indexOf(it) != -1;
	};