Jquery调整文档高度 [英] Jquery resize document height

问题描述

我对我的jQuery / JS代码有点麻烦。

I'm having a little trouble with my jQuery/JS code.

每当窗口调整大小时，应该运行stretch函数。

Whenever the window resizes, the "stretch" function should be run.

function stretch() {
    var stretch_elem = $('.stretch');
    if (stretch_elem.length) {
        var h = $(document).height() - stretch_elem.offset().top - 70;
        stretch_elem.height(h);
    }
}

$(window).resize(stretch);

但是，当我调整窗口大小时，发生了一些奇怪的事。

But something strange is happening, when I resize the window. The element I'm stretching is just getting longer and longer, even if I upsize the window and the document height is getting lower.

我在这里做错了什么？

提前感谢。

推荐答案

必须在设置新高度之前添加 stretch_elem.height（0）; 。没想到我需要这样做。但它现在工作。

Just fixed it. Had to add stretch_elem.height(0); before setting the new height. Didn't think I needed to do that. But it's working now.

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