Backbone.js 视图中的 $el 和 el 有什么区别? [英] What is the difference between $el and el in Backbone.js views?
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问题描述
你能说出 Backbone.js 视图中 $el
和 el
的区别吗?
Can you please tell the difference between $el
and el
in Backbone.js views?
推荐答案
让我们说你这样做
var myel = this.el; // here what you have is the html element,
//you will be able to access(read/modify) the html
//properties of this element,
有了这个
var my$el = this.$el; // you will have the element but
//with all of the functions that jQuery provides like,
//hide,show etc, its the equivalent of $('#myel').show();
//$('#myel').hide(); so this.$el keeps a reference to your
//element so you don't need to traverse the DOM to find the
// element every time you use it. with the performance benefits
//that this implies.
一个是html元素,另一个是元素的jQuery对象.
one is the html element and the other is the jQuery object of the element.
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