Mootools类中的私有方法

var MyClass = new Class({
    Implements: [Options],
    options: {
        name: 'default'
    },
    initialize: function(options) {
        this.setOptions(options);
    },
    _privateMethod: function() {
        console.log('This is a private method.');
    },
    publicMethod: function() {
        console.log('This is a public method.');
        this._privateMethod();
    }
});