javascript - .slideToggle() 在使用 Jquery 3.1.1 时不起作用

Question

出于某种原因，当我尝试执行以下代码时遇到未捕获的类型错误。

jQuery(function($){
    $(document).ready(function() {
        $(".block").click(function() {
            var currentElement = $(this).find(".form-group");
            currentElement.slideToggle("slow");
        });
    });
});

出现以下错误

Uncaught TypeError: currentElement.slideToggle is not a function
at HTMLDivElement.<anonymous> (index.js:6)
at HTMLDivElement.dispatch (jquery-3.1.1.slim.min.js:3)
at HTMLDivElement.q.handle (jquery-3.1.1.slim.min.js:3)

然而，当我调用 currentElement.toggle() 时，它按预期工作，我没有收到任何错误。

谁能解释这是为什么？

Answer 1

这里的问题是您使用的是 slim 版本，它排除了 slideToggle 预期的动画效果；所以函数没有定义。只需切换到普通版本即可。

来自Jquery Page

Slim build

Sometimes you don’t need ajax, or you prefer to use one of the many standalone libraries that focus on ajax requests. And often it is simpler to use a combination of CSS and class manipulation for all your web animations. Along with the regular version of jQuery that includes the ajax and effects modules, we’ve released a “slim” version that excludes these modules. All in all, it excludes ajax, effects, and currently deprecated code.