鉴于骨干网接入方式变量 [英] backbone view access methods variables

问题描述

可以是一个简单的问题...我如何访问变量Backbone.js的看法呢？

May be a simple questions... How do I access variables in backbone.js view?

initialize: function() { //all init here }
render: function() {//all render here }

printFoo: function(event) {
   var printVar = this.changeFoo.changeVar  // how do I access changeVar  here???
}

changeFoo: function(event) {
  var changeVar = $(e.currentTarget).attr('id');
}

我怎么做访问changeVar？

how do I access changeVar ?

推荐答案

简短的回答，你不能。

原因： changeVar 是的私有成员 changeFoo

您可以的推动的 changeVar 来成为外部对象的成员。在这种情况下， changeVar 变访问初始化，渲染 ， printFoo 和 changeFoo 。

You could promote changeVar to become a member of the outer object. In which case, changeVar becomes accessible to initialize, render, printFoo and changeFoo.

function ConstructorFunctionName(){
    var changeVar = 'foo';
    /*this.changeVar = 'foo'; // this can also be used */

    this.initialize = function() { //all init here };
    this.render = function() { //all render here };

    this.printFoo = function(event) {
       var printVar = changeVar;
    };

    this.changeFoo = function(event) {
      this.changeVar = $(e.currentTarget).attr('id');
    };
}

http://jsfiddle.net/Njwdx/

这篇关于鉴于骨干网接入方式变量的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！