Chaining methods

chain-methods.js

;(function () {
    function utils() { }

    utils.prototype.customString = function(str) {
        this.value = str;
        return this;
    };

    utils.prototype.toLower = function() {
        this.value = this.value.toLowerCase();
        return this;
    };

    utils.prototype.toValue = function() {
        return this.value;
    };

    var line = new utils().customString('SomeText').toLower().toValue();
    console.log(line);
})();