获取元素的右下角位置 [英] Get bottom and right position of an element

问题描述

我试图像这样在窗口中获取元素的位置:

I'm trying to get the position of an element within the window like so:

var link = $(element);

var offset = link.offset();
var top = offset.top;
var left = offset.left;
var bottom = $(window).height() - link.height();
bottom = offset.top - bottom;
var right = $(window).width() - link.width();
right = offset.left - right;

但是底部和右侧的前面都有- ...这是为什么?因为数字是正确的，只是它们不应为负.

However the bottom and right have - in front of them... Why is this? as the numbers are correct just they should NOT be minus.

推荐答案

代替

var bottom = $(window).height() - link.height();
bottom = offset.top - bottom;

你为什么不做

var bottom = $(window).height() - top - link.height();

您的错误是您在做

bottom = offset.top - bottom;

代替

bottom = bottom - offset.top; // or bottom -= offset.top;

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