event.isPropagationStopped() · jquery183

### 返回值:Booleanevent.isPropagationStopped() ### *V1.3*概述根据事件对象中是否调用过 event.stopPropagation() 方法来返回一个布尔值。这个事件方法在 [W3C DOM Level 3 specification](http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/events.html#Events-Event-isPropagationStopped) 有介绍。 ### 示例 #### 描述: 检测 event.stopPropagation() 是否被调用过。 ##### 代码: ~~~ <!DOCTYPE html> <html> <head> <script src="http://code.jquery.com/jquery-latest.min.js"></script> </head> <body> <button>click me</button> <div id="stop-log"></div> <script> function propStopped(e) { var msg = ""; if ( e.isPropagationStopped() ) { msg = "called"; } else { msg = "not called"; } $("#stop-log").append( "<div>" + msg + "</div>" ); } $("button").click(function(event) { propStopped(event); event.stopPropagation(); propStopped(event); }); </script> </body> </html> ~~~