I have a list like this one:
<ul&开发者_如何学Gogt;
<li>
<a href="..."> ... </a>
<a href="..."> ... </a>
</li>
<li>
<a href="..."> ... </a>
<a href="..."> ... </a>
</li>
<li>
<a href="..."> ... </a>
<a href="..."> ... </a>
</li>
...
</ul>
and the jQuery:
$("li").each(function(){
// do stuff
});
How can I get the current list number (like 1, 2 or 3) inside that jquery function (where do stuff is)?
The callback function passed to each
has two arguments, the first being the index you're looking for:
$('li').each(function(index, value) {
// index is what you're looking for
});
Have a look at the documentation for each
:
the callback is passed an array index and a corresponding array value each time.
Note that the index will be zero-based, so if you want your "1, 2, 3..." (from your question), you'll need to make the appropriate accommodations.
Per the jQuery documentation, you can include a callback within the function (as below):
$('li').each(function(index, value) {
alert('li #' + index);
});
jQuery passes it as an argument:
$('li').each(i, li) {
// i is the counter (starts at zero)
});
(hold on while I make sure that's the right order; i always get confused b/c "$.map()" is different!)
yup that's it, index then element.
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