event.isPropagationStopped()
根据事件对象中是否调用过 event.stopPropagation()方法,来返回一个布尔值。
event.isPropagationStopped()
这个方法不接受任何参数。
例子
检测 event.stopPropagation()是否被调用过。
<!DOCTYPE html> <html> <head> <script src="https://www.lanmper.cn/static/js/jquery-3.5.0.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>