Function.prototype.bind = function(b) {

    var a = this;

    return function() {

        a.apply(b, arguments)

    }

};

Function.prototype.once = function() {

    var b = false,

        a = this;

    return function() {

        if (b) {

            return

        } else {

            b = true;

            a.apply(this, arguments)

        }

    }

};

Function.prototype.before = function(b) {

    var a = this;

    return function() {

        if (b.apply(this, arguments) == false) {

            return false

        }

        return a.apply(this, arguments)

    }

};

Function.prototype.after = function(b) {

    var a = this;

    return function() {

        var c = a.apply(this, arguments);

        if (c === false) {

            return false

        }

        b.apply(this, arguments);

        return c

    }

};

String.prototype.hasString = function(f) {

    if (typeof f == "object") {

        for (var d = 0, g = f.length; d < g; d++) {

            if (!this.hasString(f[d])) {

                return false

            }

        }

        return true

    } else {

        if (this.indexOf(f) != -1) {

            return true

        }

    }

};