Rails UJS:使用“'ajax:before'"阻止事件传播 [英] Rails UJS: Preventing the event from propagating using "'ajax:before'"

问题描述

我对ajax:before在使用时的工作方式感到困惑:jquery-ujs/rails.js

I am a confused by how the ajax:before works when using: jquery-ujs/rails.js

1)它是否在ajax中等待任何给定的功能:完成之前，然后继续?

1) Does it wait for any given function in the ajax:before to completed before proceeding?

2)如果某个条件失败，我如何在jQuery中完全取消该事件? (我似乎没有指向事件的指针)

2) How do i completely cancel the event in jQuery if it fails some condition? (i do not seem to have a pointer to the event)

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更新:我尝试了此操作，该方法通常可以正常工作，但现在不行. = |

Update : I tried this, which normally works, but not now. =|

.bind('ajax:before', function(evt){
    evt.stopImmediatePropagation();
   } )
 //also tried preventDefault, stopPropagation, etc

推荐答案

我回答了自己的问题. ajax中的"return false":之前将取消操作

I answered my own question. "return false" in the ajax:before will cancel the action

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