jQuery:为什么CSS(' width')返回的值与width()不同 [英] jquery: why css('width') returns different value than width()

问题描述

当我运行以下代码时:

        node = $('.period')
        alert(node.width() + ' ' + node.css('width'))

我得到"0 144px".那怎么可能?

i get '0 144px'. How is that possible?

推荐答案

也许您是在$(document).ready上调用它的，并以 width() 的形式获取当前计算的，像素，第一个匹配元素的宽度.，由于尚未渲染，因此为0 ...
css('width')但是从css样式表中读取，该样式表已经可用.

Maybe you're calling it on $(document).ready, and as width() Gets the current computed, pixel, width of the first matched element., it'd be 0 as it has not been rendered yet...
css('width') however reads from the css stylesheet, which would be already available.

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