onclick event
Definition and usage
onclick event occurs when the user clicks an element.
实例
Execute JavaScript when the button is clicked:
<button onclick="myFunction()">Click me</button>
More TIY examples are below the page.
Syntax
In HTML:
<element onclick="myScript">
In JavaScript:
object.onclick = function(){myScript};
In JavaScript, use the addEventListener() method:
object.addEventListener("click", myScript);
Note:Internet Explorer 8 or earlier versions do not support addEventListener() method.
Technical details
| Bubble: | Rarrabawa |
|---|---|
| Cancellable: | Rarrabawa |
| Event type: | MouseEvent |
| Supported HTML tags: | All HTML elements, except: <base>, <bdo>, <br>, <head>, <html>, <iframe>, <meta>, <param>, <script>, <style> and <title> |
| DOM Version: | Level 2 Events |
Rarrabawa kiyayi
| Fale | Chrome | IE | Firefox | Safari | Opera |
|---|---|---|---|---|---|
| onclick | Rarrabawa | Rarrabawa | Rarrabawa | Rarrabawa | Rarrabawa |
Koyi kara
实例
Koyi <button> fiyayi dominan dake koyi dukiya, kuma dukiya dake koyi dukiya:
<button onclick="getElementById('demo').innerHTML = Date()">What is the time?</button>
实例
单击 <p> 元素将其文本颜色更改为红色：
<p id="demo" onclick="myFunction()">Click me to change my text color.</p>
<script>
function myFunction() {
document.getElementById("demo").style.color = "red";
}
</script>
实例
关于如何通过单击来更改 <p> 元素颜色的另一个例子：
<p onclick="myFunction(this, 'red')">Click me to change my text color.</p>
<script>
function myFunction(elmnt,clr) {
elmnt.style.color = clr;
}
</script>
实例
单击按钮将一些文本从输入字段复制到另一个输入字段：
<button onclick="myFunction()">Copy Text</button>
<script>
function myFunction() {
document.getElementById("field2").value = document.getElementById("field1").value;
}
</script>
实例
把 "onclick" 事件分配给 window 对象：
window.onclick = myFunction;
// 如果用户在窗口中单击，则将 <body> 的背景颜色设置为黄色
function myFunction() {
document.getElementsByTagName("BODY")[0].style.backgroundColor = "yellow";
}
实例
使用 onclick 创建下拉按钮：
// 获取按钮，当用户点击时，执行 myFunction
document.getElementById("myBtn").onclick = function() {myFunction()};
/* myFunction 在添加和删除 show 类之间切换，用于隐藏和显示下拉内容 */
function myFunction() {
document.getElementById("myDropdown").classList.toggle("show");
}
Shafin muharrar
Horon JavaScript:JavaScript ɗanin wasan kai
HTML DOM Koyarwa:ondblclick ɗanin wasan kai
HTML DOM Koyarwa:onmousedown ɗanin wasan kai
HTML DOM Koyarwa:onmouseup ɗanin wasan kai
