javascript - 如何使用 JavaScript OOP 在附加的事件处理程序中引用 'real' this？

Question

如何使用 JavaScript OOP 在附加的事件处理程序中引用“真实的”this？

使用局部变量“anyVariable”引用实例是最佳做法吗？

var myClass = (function () {
function myClass(gridId) {
    $(function () {
        // misc init code replaced here
        this.initKeyboard();
    });

}

myClass.prototype.initKeyboard = function () {
    var anyVariable = this; // keyword 'this' is clearly referring here to the instance
    $(document).keyup(function (e) {
        // I would like to refer here to the instance.
        // However it seems that the keyword 'this' refers here to the function (?)
        // Is is the best practice here to refer to the instance by using the local variable 'anyVariable'?
        anyVariable.myMember(...); //???
        }
    });
};

Answer 1

通常的变量名称是 self、that 或 _this(更多详细信息请参见 question)，但是，是的，这是当上下文改变时保持所需的 this 值的通常方法