"function(e)" is the event handling function (on event, object is created). "e" is the object handler (object is made accessible). " ... ... <看更多>

比較常用在a連結的href、Form表單的submit 上，有時可能只是想觸發呼叫Function，而不想使用到原生附與的功能的話，就可利用preventDefault 達成此需求。 ... <看更多>

The html element having class add_node is generated inside one of the JS code. So when the code $(".add_node").click(function(e) { console.log(' ... ... <看更多>

Uncaught TypeError: e.stopPropagation is not a function at r.<anonymous> (wupemoqeti:155) at r.delegates.o.<computed> (map.js:898) at r. ... <看更多>

in this tutorial, you will learn how to use the JavaScript Array forEach method to ... forEach(function (e) { sum += e; this.increase(); }, counter); ... ... <看更多>