filter will select a certain subset (zero or more) of the already
selected elements.
jquery的filter将在一组已经选取的元素里面选择
find will select a set of (zero or more) elements that are descendants
of the already selected elements.
jquery的find将在一组已经选取的元素的子节点里面选择
Here is an example:
示例如下
- <div class="peanuts">
- <p class="elephants"></p>
- </div>
- <div class="elephants">
- <p></p>
- </div>
$(‘div’).filter(‘.elephants’); // <– selects the second div, because
it has class=”elephants”
$(‘div’).find(‘.elephants’); // <– selects the first paragraph,
because it has class=”elephants”
* Note that these two examples are very simple and would probably be
better written as …
$(‘div.elephants’);
… and …
$(‘div .elephants’);
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