更改Onclick函数vars的值 [英] Change value of Onclick function vars

问题描述

我在按钮上附加了onClick功能.我希望能够在页面加载时以及通过其他功能将功能var从创建"更改为更新".我已经尝试过下面的代码，但是没有运气.

I have the onClick function attached to a button. I want to be able to change the function var from 'create' to 'update' on the page load and through other functions. I have tried the code below but no luck.

<input type="button" name="save_customer" id="save_customer" value="Save" onClick="customer_crud('create')" />

var js = "customer_crud('read')";
// create a function from the "js" string
var newclick = new Function(js);
// clears onclick then sets click using jQuery
$("#save_customer").attr('onClick', '').click(newclick)

任何想法.

已更新

简而言之，我想更改attr onClick，就像您要更改attr名称&一样.类型.

Ok in a nutshell i want to change the attr onClick like you would change the attr name & type.

<input type="button" name="save_customer" id="save_customer" value="Save" onClick="customer_crud('create')" />

到

<input type="button" name="save_customer" id="save_customer" value="Save" onClick="customer_crud('update')" />

谢谢

推荐答案

如果可能，不要使用内联处理程序.他们没有适当的范围，也依赖于高度赞赏的eval来完成工作.

Don't use inline handlers if possible. They don't get proper scope, and also rely on the highly-frowned upon eval to do their work.

相反，您可以在.js文件中执行以下操作:

Instead, in your .js file, you can just do this:

var action = 'create';
$('#save_customer').click(function() {
      customer_crud(action);
      action = 'update';
});

第一次调用处理程序时，它将执行create，然后执行update.

The first time the handler is invoked it'll do create, and then subsequently do an update.

我将工作演示放在 http://jsfiddle.net/QzaXU/

这篇关于更改Onclick函数vars的值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！