Event.defaultPrevented

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

概述

回傳一個布林值,表示事件的預設行為是否被取消,也就是事件物件是否曾執行 preventDefault() 方法。

備註: You should use this instead of the non-standard, deprecated getPreventDefault() method (see Firefox bug 691151).

語法

js
bool = event.defaultPrevented;

範例

js
if (e.defaultPrevented) {
  /* the default was prevented */
}

規範

Specification
DOM
# ref-for-dom-event-defaultprevented①

瀏覽器相容性

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
defaultPrevented

Legend

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Full support
Full support