JQuery 查找焦点输入的索引 [英] JQuery find index of focused input

问题描述

如何找到焦点输入字段的索引?现在我有这个代码:

How can I find index of a focused input field? For now I have this code:

var forma = $('form#mali_oglas'),
    pomoc = $('div[role=pomoc]'),    
    input = forma.find('input[type!=hidden], textarea');

    index = input.focus().index();
    console.log(index);

我得到的只是表单中输入元素的数量(目前为 15).

All that I get is number of input elements in the form (15 at the moment).

推荐答案

http://jsfiddle.net/iambriansreed/QyUHv/

jQuery

var f = $('form');
f.click(function(){    
    $('#index').val($(':input:focus',f).index());    
});​

HTML

<form>    
<input value="hello"/><br/>
<textarea></textarea><br/>
<input/><br/>
<input/><br/>
<select><option>Option</option></select><br/>
<input/><br/>
</form><br/><br/>
Field Index with focus:
<input id="index"/>

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