Question

我正在使用此代码，但每次调用init方法时都会出现错误

this.addElement不是函数

是因为我无法从事件处理程序中调用方法吗？

function editor () {

    this.init = function () {
        $("#area").bind('click' , this.click_event );

    }

    this.addElement = function () {
        console.log("adding element");
    }

    this.click_event = function(event) {
        this.addElement();
        console.log("click event in x : "+event.data);
    }
}

Answer 1

function editor () {
    var that = this;

    this.init = function () {
        $("#area").bind('click' , this.click_event );

    }

    this.addElement = function () {
        console.log("adding element");
    }

    this.click_event = function(event) {
        that.addElement();
        console.log("click event in x : "+event.data);
    }
}

您应该阅读本书JavaScript: the Good Parts并访问Crockenator的网站crockford.com

您还可以在此处阅读JavaScript“this”问题，http://www.quirksmode.org/js/this.html

从事件处理程序调用方法

1 个答案: