如何在 jQuery 中引用附加项? [英] How do I refer to an appended item in jQuery?

问题描述

我想在 jquery 中创建和附加一个项目，同时保存对它的引用.

I want to create and append an item in jquery, while saving a reference to it.

 var buy = "<img src='img/buy-now.png' />";      
 var $buy = $(buy).appendTo("body");
 $buy.html("hello");

我期待像上面那样的东西起作用.有什么想法吗?

I was expecting something like the above to work. Any ideas?

推荐答案

简而言之，$buy 就是你附加的对象，你只是在做一个无效操作.<img/> 是一个自闭合标签，里面没有 HTML，所以 .html("something") 将不起作用.

In short, $buy is the object you've appended, you're just doing an invalid operation. <img /> is a self-closing tag, there is no HTML inside it, so .html("something") will have no effect.

如果您想设置工具提示，请使用 .attr()，像这样:

If you meant to set the tooltip, use .attr(), like this:

$buy.attr('alt', 'hello');

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