单击更改图标(切换) [英] Change icon on click (toggle)

问题描述

我在jquery中有一个简单的脚本，可以在单击<p>(我正在使用引导程序)时切换div(显示和隐藏).

I have a simple script in jquery to toggle a div (show and hide) when a <p> is clicked (I'm using bootstrap).

HTML:

<p id="click_advance"><i class="icon-circle-arrow-down"></i> Advanced search</p>
<div id="display_advance">
    <p>This is the advance search</p>
</div>

JS:

$('#click_advance').click(function(){
$('#display_advance').toggle('1000');
$(this).html('<i class="icon-circle-arrow-up"></i> Advanced search');

});

因此，当我第一次单击时，图标从下到上变化，但是显然，当我再次单击"click_advance"时，该图标不会变回原来的状态.所以我想要像显示和隐藏这样的切换效果；但是我对如何使用图标一无所知.

So, when I click for the first time the icon changes from down to up but obviously when I click "click_advance" again the icon doesn't change back. So I want the toggle effect like the show and hide; but I'm cluless on how to do it with an icon.

推荐答案

不要每次都覆盖html，只需切换类即可.

Instead of overwriting the html every time, just toggle the class.

$('#click_advance').click(function() {
    $('#display_advance').toggle('1000');
    $("i", this).toggleClass("icon-circle-arrow-up icon-circle-arrow-down");
});

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