GlobalEventHandlers.onclick

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句法
范例
规范
浏览器兼容性
另请参阅
相关话题

onclick 特性为 GlobalEventHandlers 混合 EventHandler 为处理 click events on a given element.

click event is raised when the user clicks on an element. It fires after the mousedown and mouseup events, in that order.

注意： 当使用


							click

event to trigger an action, also consider adding this same action to the


								keydown

event, to allow the use of that same action by people who don't use a mouse or a touch screen.

句法

target.onclick = functionRef;

值

functionRef is a function name or a 函数表达式 . The function receives a MouseEvent object as its sole argument. Within the function, this will be the element upon which the event was triggered.

Only one onclick handler can be assigned to an object at a time. You may prefer to use the EventTarget.addEventListener() method instead, since it's more flexible.

范例

Detecting clicks

This example simply changes the color of an element when it's clicked upon.

HTML

<div id="demo">Click here</div>

JavaScript

document.getElementById('demo').onclick = function changeContent() {
   document.getElementById('demo').innerHTML = "Help me";
   document.getElementById('demo').style = "Color: red";
}

结果

Getting the coordinates of clicks

This example displays the coordinates at which the most recent mouse button click occurred.

HTML

<p>Click anywhere in this example.</p>
<p id="log"></p>

JavaScript

let log = document.getElementById('log');
document.onclick = inputChange;
function inputChange(e) {
  log.textContent = `Position: (${e.clientX}, ${e.clientY})`;
}

结果

规范

规范	状态	注释
HTML 实时标准 The definition of 'onclick' in that specification.	实时标准

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`onclick`	Chrome 1	Edge 12	Firefox 1	IE 9	Opera 9	Safari 3	WebView Android 1	Chrome Android 18	Firefox Android 4	Opera Android 10.1	Safari iOS 1	Samsung Internet Android 1.0

图例

完整支持

另请参阅

click event
相关事件处理程序
- GlobalEventHandlers.onauxclick
- GlobalEventHandlers.ondblclick

元数据

最后修改： Aug 7, 2020

在此页

句法

值

范例

Detecting clicks

HTML

JavaScript

结果

Getting the coordinates of clicks

HTML

JavaScript

结果

规范

浏览器兼容性

图例

另请参阅

相关话题