如何将事件作为参数传递给JavaScript中的内联事件处理程序？ [英] How to pass event as argument to an inline event handler in JavaScript?

问题描述

// this e works
document.getElementById("p").oncontextmenu = function(e) {
    e = e || window.event;
    var target = e.target || e.srcElement;
    console.log(target);
};

// this e is undefined
function doSomething(e) {
    e = e || window.event;
    var target = e.target || e.srcElement;
    console.log(target);
}

<p id="p" onclick="doSomething(e)">
    <a href="#">foo</a>
    <span>bar</span>
</p>

还有一些类似的问题被问到。

There are some similar questions have been asked.

但是在我的代码中，我试图获得被点击的子元素，例如 a 或 span 。

But in my code, I'm trying to get child elements who's been clicked, like a or span.

那么将事件作为参数传递给事件的正确方法是什么？处理程序，或者如何在没有传递参数的情况下处理事件？

So what is the correct way to pass event as an argument to event handler, or how to get event inside handler without passing an argument?

我知道 addEventListener 和 jQuery ，请提供一个解决方案，将事件传递到 inline 事件处理程序

I'm aware of addEventListener and jQuery, please provide a solution for passing event to inline event hander.

推荐答案

传递事件 / p>

to pass the event object:

<p id="p" onclick="doSomething(event);">

获取点击的子元素（应与事件参数：

to get the clicked child element (should be used with event parameter:

function doSomething(e) {
    e = e || window.event;
    var target = e.target || e.srcElement;
    console.log(target);
}

传递元素本身（DOMElement）：

to pass the element itself (DOMElement):

<p id="p" onclick="doThing(this);">

查看 jsFiddle

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