当元素滚动到视图中时，jQuery Waypoints添加类 [英] jQuery Waypoints add class when element is scrolled into view

问题描述

我正在使用 Waypoints 插件来检查元素是否滚动到视图中。当用户向下滚动页面时，我有多个具有类 item 的div，我想为每个添加一个查看类。

I'm using the Waypoints plugin to check if an element is scrolled into view. I have multiple divs with class item as the user scrolls down the page, I want to add a class "viewed" to each.

$(".item").waypoint(function(){
    $(this).addClass("viewed");
    console.log("yey");
});

console.log有效，但 .addClass 没有。该插件不支持 $（this）？

The console.log works, but the .addClass doesn't. Does the plugin not support $(this)?

推荐答案

我终于让它运转。

$(".item").waypoint(function(){
   $(this[0,'element']).addClass("viewed");
});

此未指向元素，所以我需要定位它。

The this wasn't pointed at the element, so I needed to target it.

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