在JQuery中，是否可以在设置新的css规则后获得回调函数？ [英] In JQuery, Is it possible to get callback function after setting new css rule?

问题描述

我有 $（'。element'）。css（color，yellow）和我需要下一个事件是在这一个，像 $（'。element'）。css（color，yellow，function（）{alert（1）;}）因为：

I have $('.element').css("color","yellow") and I need that next event was only after this one, something looks like $('.element').css("color","yellow",function(){ alert(1); }) I need this because:

$('.element').css("color","yellow");
 alert(1);

事件几乎是一次发生，这一刻调用动画效果中的错误）

events are happen at one time almost, and this moment call the bug in animation effect (alert(1) is just here for example, in real module it's animation)

推荐答案

回调只是异步函数必需的。 css函数将在代码执行继续之前完成，因此不需要回调。在代码中：

Callbacks are only necessary for asynchronous functions. The css function will always complete before code execution continues, so a callback is not required. In the code:

$('.element').css('color', 'yellow');
alert(1);

颜色将在警报触发之前更改。您可以通过运行以下命令来确认此操作：

The color will be changed before the alert is fired. You can confirm this by running:

$('.element').css('color', 'yellow');
alert($('.element').css('color'));

换句话说，如果你想使用回调，只需在css函数后执行： / p>

In other words, if you wanted to use a callback, just execute it after the css function:

$('.element').css('color', 'yellow');
cb();

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