当窗口滚动到特定位置时触发事件 [英] Trigger events when the window is scrolled to certain positions

问题描述

我想在浏览器窗口超出某个点时调用函数
(例如，用户将窗口从顶部向下滚动超过 200 像素

I would like to call functions when the browser window goes beyond a certain point
(e.g the user scrolled the window down beyond 200px from the top

是否有我可以绑定的事件，然后我将如何检查从浏览器顶部到页面顶部的偏移量是多少?

Is there an event I can bind to and then how would I check how much the offset is from the top of the browser to the top of the page?

推荐答案

您可以使用 onscroll

function testScroll(ev){
    if(window.pageYOffset>400)alert('User has scrolled at least 400 px!');
}
window.onscroll=testScroll

如果你想要一个 jQuery 解决方案，你可以使用 scroll.

If you want a jQuery solution you can use scroll.

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