纯javascript相当于jquery click（）？ [英] pure javascript equivalent of jquery click()?

问题描述

我正在建立一个捕捉鼠标点击的小应用程式。我在jquery写了原型，但是，因为它是一个小应用程序专注于速度，嵌入jquery只使用一个函数将是一个overkill。

I am building a small app which captures mouse clicks. I wrote the prototype in jquery but, since it is a small app focusing on speed, embedding jquery to use just one function would be an overkill.

我试图从修改此示例JavascriptKit ：

document.getElementById("alphanumeric").onkeypress=function(e){  
    //blah..blah..blah..  
}

但它没有工作时，我尝试

but it didn't work when I tried

document.getElementsByTagName("x").onclick

我做错了什么？

推荐答案

有一个p标签的列表，您想要捕获p标签的点击：

Say you have a list of p tags you would like to capture the click for the p tag:

var p = document.getElementsByTagName("p"); 
for(var i=0; i<p.length; i++){ 
 p[i].onclick = function(){ 
   alert("p is clicked and the id is " + this.id); 
 } 
}

请查看此处的示例以便更清楚：
http://jsbin.com/onaci/

Check out an example here for more clarity: http://jsbin.com/onaci/

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