未捕获的类型错误:对象 [object Object] 没有“on"方法 [英] Uncaught TypeError: Object [object Object] has no method 'on'

问题描述

谁能帮我解决这个问题?

Can anyone help me to figure this out ?

当我使用最新(或新)版本的 jQuery 时，下面的小脚本可以正常工作.但是，当我使用旧版本的 jQuery 时，我的脚本说 on 函数不存在.

When I use the latest (or a newish) version of jQuery, the small script below works fine. However, when I use older versions of jQuery, my script says that the on function does not exist.

这是我的脚本，它不适用于旧版本的 jQuery:

Here is my script that doesn't work with older versions of jQuery:

$(document).ready(function () {
    $(".theImage").on("click", function(){
        // In the event clicked, find image, fade slowly to .01 opacity
        $(this).find("img").fadeTo("slow", .01).end()
        // Then, of siblings, find all images and fade slowly to 100% opacity
               .siblings().find("img").fadeTo("slow", 1);           
    })
})

感谢任何形式的帮助.

推荐答案

必须使用bind 而不是 on，如 on 仅在 jQuery 1.7 中引入.

You must use bind instead of on, as on was only introduced in jQuery 1.7.

$(document).ready(function () {
    $(".theImage").bind("click", function(){
        // In the event clicked, find image, fade slowly to .01 opacity
        $(this).find("img").fadeTo("slow", .01).end()
        // Then, of siblings, find all images and fade slowly to 100% opacity
        .siblings().find("img").fadeTo("slow", 1);           
    })
})

这篇关于未捕获的类型错误:对象 [object Object] 没有“on"方法的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！