jquery index get element index value program code

Source: Internet
Author: User

Cases

The code is as follows Copy Code

$ ("Li"). Click (function () {
Alert ($ ("Li"). Index (this));
});

Cases

[JS]

The code is as follows Copy Code

$ (' li '). Index (document.getElementById (' Bar ')); 1, passing a DOM object that returns the index position of the object in the original collection
$ (' li '). Index ($ (' #bar ')); 1, passing a jquery object
$ (' li '). Index ($ (' li:gt (0) ')); 1, passing a set of jquery objects that returns the index position of the first element of the object in the original collection
$ (' #bar '). Index (' Li '); 1, pass a selector, return #bar position in all Li
$ (' #bar '). index (); 1, does not pass the parameter, returns the index position of this element in the sibling.

[HTML]

<ul>
<li id= "foo" >foo</li>
<li id= "Bar" >bar</li>
<li id= "Baz" >baz</li>
</ul>

Cases

The code is as follows Copy Code

<ul>
<li><a href= "#nogo" > here is a sequence </a></li>
<li><a href= "#nogo" > here is a sequence </a></li>
<li><a href= "#nogo" > here is a sequence </a></li>
<li><a href= "#nogo" > here is a sequence </a></li>
<li><a href= "#nogo" > here is a sequence </a></li>
<li><a href= "#nogo" > here is a sequence </a></li>


As shown above, this is an unordered list what do I need to click on any listing item to get the sequence of the item?

The code is as follows Copy Code

$ (document). Ready (function () {
$ ("#act li"). Click (function () {
Alert ($ ("#act li"). Index ($ (this) [0]));
})
})

$ ("#act li"). Index ($ (this) [0]) [0]

Grey is always important oh ~

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