什么是执行jQuery .change()的最佳方法 [英] What is best way to perform jQuery .change()

问题描述

我有2个独立的脚本，它们基本上可以完成相同的操作.我逐渐建立了它们，只是发现我正在使用几种不同的方法来获得相同的结果.

I have 2 separate scripts that essentially do the same thing. I built them over time and just discovered I am using a couple different means to get to the same result.

在这两种情况下，我都希望标准化并使用最佳实践方法.

I want to standardize and use the best practices method in both cases.

测试变更事件的一种方法是:

One way I test a change event is this:

$('input[name="status"]').change(function() {});

我测试变更事件的另一种方法是:

Another way I am testing a change event is this:

$("#email").bind("change", function(e) {});

哪种方法最好? 2和有什么区别?

Which way is best? What is the difference between the 2?

感谢您帮助我理解这一点.

Thanks for helping me understand this.

推荐答案

在jQuery 1.7之前，change()是的捷径.

Before jQuery 1.7, change() was simply a short cut for bind("change").

但是从1.7开始， on()引入了，它是bind()的首选.现在，这意味着change()是on("change")的快捷方式，实际上所有bind()调用现在都将调用 on() .

As of 1.7 however, on() was introduced, and is preferred to bind(). That now means change() is a shortcut for on("change"), and in fact all bind() calls will now call on() internally.

简而言之，他们做同样的事情.我发现最好显式使用on()(或bind())，但是只要您在整个代码库中保持一致，就不会发现任何真正的区别.

In short, they do the same thing. I find the explicit use of on() (or bind()) preferable, but as long as you're consistent throughout your code base, I don't see any real differences.

有人可能会说，在on("change")上使用change()是更好的"，因为单词"change"中的错字会在第一个实例中引发解析错误("undefined not a function")，但会on()静默失败...但是很显然，您的单元测试会抓住这一点，对吧? ;).

One could argue that using change() over on("change") is "better", as a typo in the word "change" would throw a parse error in the first instance ("undefined is not a function"), but would fail silently with on()... but obviously your unit tests would catch that, right? ;).

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