jQuery.event.props未定义

问题描述

我正在使用 jquery.event.move 在触摸设备上创建移动事件.该脚本在第580行上引发了错误.

I'm using jquery.event.move to create move events on touch devices.The script is throwing an error on line 580.

570 // Make jQuery copy touch event properties over to the jQuery event
571 // object, if they are not already listed. But only do the ones we
572 // really need. IE7/8 do not have Array#indexOf(), but nor do they
573 // have touch events, so let's assume we can ignore them.
574 if (typeof Array.prototype.indexOf === 'function') {
575     (function(jQuery, undefined){
576         var props = ["changedTouches", "targetTouches"],
577             l = props.length;
578
579         while (l--) {
580             if (jQuery.event.props.indexOf(props[l]) === -1) {
581                 jQuery.event.props.push(props[l]);
582             }
583         }
584     })(jQuery);
585 };

到达580行时抛出Uncaught TypeError: Cannot read property 'indexOf' of undefined我了解的方式是jQuery.event.props是未定义的?默认情况下，jquery中不应该存在此数组吗?我已经将jquery作为宝石安装"在我的rails应用程序中(jquery-rails 4.1.1)知道我能做什么吗?

When it gets to line 580 it throws Uncaught TypeError: Cannot read property 'indexOf' of undefinedThe way I understand it is that jQuery.event.props is undefined? Shouldn't this array be present by default in jquery?I've "installed" jQuery in my rails app as a gem (jquery-rails 4.1.1)Any idea what I could do?

推荐答案

jquery版本3或更高版本存在问题，如 jquery.event.move github issue 页面:

There is an issue with jquery version 3 or above as mentioned in the jquery.event.move github issue page:

jQuery 3.0.0中断了jQuery.event.props的使用

这是因为在jQuery 3.0.0升级中删除了jQuery.event.props和jQuery.event.fixHooks.这里有更多详细信息:

This happened since in jQuery 3.0.0 upgrade jQuery.event.props and jQuery.event.fixHooks are removed. More details here:

重大更改:已删除jQuery.event.props和jQuery.event.fixHooks

github问题仍未解决，截至2016年1月8日尚未提供解决方案.作为替代解决方案，您可以:-

The github issue is still open and no solution has been provided yet as of 08.01.2016. As an alternative fix you can either:-

• 使用jQuery Migrate插件，该插件为这些插件提供支持特性.
• 或者，使用3.0.0以下的任何jQuery版本

• Use the jQuery Migrate plugin, which provides support for theseproperties.
• Or, use any jQuery version below 3.0.0

这篇关于jQuery.event.props未定义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！