jQuery:获取 jQuery 中隐藏元素的高度 [英] jQuery: Get height of hidden element in jQuery

问题描述

我需要获取隐藏的 div 中元素的高度.现在我显示 div，获取高度，并隐藏父 div.这似乎有点傻.有没有更好的办法?

I need to get height of an element that is within a div that is hidden. Right now I show the div, get the height, and hide the parent div. This seems a bit silly. Is there a better way?

我使用的是 jQuery 1.4.2:

I'm using jQuery 1.4.2:

$select.show();
optionHeight = $firstOption.height(); //we can only get height if its visible
$select.hide();

推荐答案

你可以做这样的事情，虽然有点hacky，如果它已经是绝对的，请忘记position:

You could do something like this, a bit hacky though, forget position if it's already absolute:

var previousCss  = $("#myDiv").attr("style");

$("#myDiv").css({
    position:   'absolute', // Optional if #myDiv is already absolute
    visibility: 'hidden',
    display:    'block'
});

optionHeight = $("#myDiv").height();

$("#myDiv").attr("style", previousCss ? previousCss : "");

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