原文:https://medium.com/@florenceliang/javascript-event-delegation-and-event-target-vs-event-currenttarget-c9680c3a46d1 In this case, at the time you call console.log(e), there's a DOM element in the currentTarget property. But sometime later, that pro…
js代码: $(".leads_detail").click(function(e){ e = e || event; var t = e.target || e.srcElement; var leads_id = $(this).data('id'); if (t.id == "leads_track") { window.open("<?=Url::toRoute(['leads-track'])?>" + "?lea…
What are the benefits to using anonymous functions instead of named functions for callbacks and parameters in JavaScript event code? I use anonymous functions for three reasons: If no name is needed because the function is only ever called in one pl…
原文地址:http://javascript.info/tutorial/bubbling-and-capturing 先给出最终的结论: Summary Events first are captured down to deepest target, then bubble up. In IE<9 they only bubble. All handlers work on bubbling stage excepts addEventListener with last argument …