HTMLElement.click() 方法可以模擬滑鼠點擊一個元素。
當 click() 被使用在支援的元素（例如任一 <input> 元素），便會觸發該元素的點擊事件。事件會冒泡至 document tree（或 event chain）的上層元素，並觸發它們的點擊事件。其中的例外是：click() 方法不會讓 <a> 元素和接收到真實滑鼠點擊一樣進行頁面跳轉。
語法
elt.click()
規範
| Specification | Status | Comment |
|---|---|---|
| Document Object Model (DOM) Level 2 HTML Specification | Obsolete | Initial definition |
瀏覽器相容性
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| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|---|
| Basic support | 20[3] | (Yes) | 5[1] | (Yes) | (Yes)[2] | 6[3] |
input@file (limited) |
(Yes) | (Yes) | 4 | (Yes) | 12.10 | (Yes) |
input@file (full) |
(Yes) | (Yes) | 4 | (Yes) | No support | (Yes) |
| Feature | Android | Chrome for Android | Edge | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|---|
| Basic support | No support | ? | (Yes) | ? | ? | ? | ? |
[1] Prior to Gecko 5.0 (Firefox 5.0 / Thunderbird 5.0 / SeaMonkey 2.2), Gecko would not implement the click() method on other elements that might be expected to respond to mouse clicks, such as links (<a> elements), nor would it necessarily fire the click event of other elements.
[2] In Presto-based versions of Opera, the click() method will be silently ignored if made on an <input> with its type attribute set to file and its CSS display property set to none.
[3] Older versions had HTMLInputElement.click(), and HTMLButtonElement.click() only.