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js 自定義事件

tlist tle event cancel tom custom var pan ble

<!DOCTYPE html>
<html>
<head lang="zh-CN">
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title></title>
<style>
  .button {
      width: 200px;
      height: 200px;
      background-color: antiquewhite;
      margin: 20px;
      text
-align: center; line-height: 200px; } </style> </head> <body> <div class="button">Button</div> <script> "use strict"; var btn = document.querySelector(.button); var ev = new Event(test, { bubbles: true, cancelable: true }); btn.addEventListener(
test, function (event) { console.log(event.bubbles); console.log(event.cancelable); console.log(event.detail); }, false); btn.dispatchEvent(ev); </script> </body> </html>
<!DOCTYPE html>
<html>
<head lang="zh-CN">
<meta charset="UTF-8">
<meta name="
viewport" content="width=device-width, initial-scale=1"/> <title></title> <style> .button { width: 200px; height: 200px; background-color: antiquewhite; margin: 20px; text-align: center; line-height: 200px; } </style> </head> <body> <div class="button">Button</div> <script> "use strict"; var btn = document.querySelector(.button); var ev = new CustomEvent(test, { bubbles: true, cancelable: true, detail: tcstory }); btn.addEventListener(test, function (event) { console.log(event.bubbles); console.log(event.cancelable); console.log(event.detail); }, false); btn.dispatchEvent(ev); </script> </body> </html>

js 自定義事件