I volontari di MDN non hanno ancora tradotto questo articolo in Italiano. Registrati per tradurlo tu.
The click
event is fired when a pointing device button (usually a mouse button) is pressed and released on a single element.
General info
- Specification
- DOM L3
- Interface
MouseEvent
- Bubbles
- Yes
- Cancelable
- Yes
- Target
- Element
- Default Action
- Varies
Properties
Property | Type | Description |
---|---|---|
target Read only |
EventTarget |
The event target (the topmost target in the DOM tree). |
type Read only |
DOMString |
The type of event. |
bubbles Read only |
Boolean |
Whether the event normally bubbles or not |
cancelable Read only |
Boolean |
Whether the event is cancellable or not? |
view Read only |
WindowProxy |
document.defaultView (window of the document) |
detail Read only |
long (float ) |
A count of consecutive clicks that happened in a short amount of time, incremented by one. |
currentTarget Read only |
EventTarget | The node that had the event listener attached. |
relatedTarget Read only |
EventTarget | For mouseover , mouseout , mouseenter and mouseleave events: the target of the complementary event (the mouseleave target in the case of a mouseenter event). null otherwise. |
screenX Read only |
long | The X coordinate of the mouse pointer in global (screen) coordinates. |
screenY Read only |
long | The Y coordinate of the mouse pointer in global (screen) coordinates. |
clientX Read only |
long | The X coordinate of the mouse pointer in local (DOM content) coordinates. |
clientY Read only |
long | The Y coordinate of the mouse pointer in local (DOM content) coordinates. |
button Read only |
unsigned short | The button number that was pressed when the mouse event was fired: Left button=0, middle button=1 (if present), right button=2. For mice configured for left handed use in which the button actions are reversed the values are instead read from right to left. |
buttons Read only |
unsigned short | The buttons being pressed when the mouse event was fired: Left button=1, Right button=2, Middle (wheel) button=4, 4th button (typically, "Browser Back" button)=8, 5th button (typically, "Browser Forward" button)=16. If two or more buttons are pressed, returns the logical sum of the values. E.g., if Left button and Right button are pressed, returns 3 (=1 | 2). More info. |
mozPressure Read only |
float | The amount of pressure applied to a touch or tabdevice when generating the event; this value ranges between 0.0 (minimum pressure) and 1.0 (maximum pressure). |
ctrlKey Read only |
boolean | true if the control key was down when the event was fired. false otherwise. |
shiftKey Read only |
boolean | true if the shift key was down when the event was fired. false otherwise. |
altKey Read only |
boolean | true if the alt key was down when the event was fired. false otherwise. |
metaKey Read only |
boolean | true if the meta key was down when the event was fired. false otherwise. |
Example
<div id="test"></div> <script> document.getElementById("test").addEventListener("click", function( event ) { // display the current click count inside the clicked div event.target.innerHTML = "click count: " + event.detail; }, false); </script>
Browser compatibility
Internet Explorer
Internet Explorer 8 & 9 suffer from a bug where elements with a computed background-color
of transparent
that are overlaid on top of other element(s) won't receive click
events. Any click
events will be fired at the underlying element(s) instead. See this live example for a demonstration.
Known workarounds for this bug:
- For IE9 only:
- Set
background-color
: rgba(0,0,0,0) - Set
and an explicitopacity
: 0background-color
other thantransparent
- Set
- For IE8 and IE9: Set
filter: alpha(opacity=0);
and an explicitbackground-color
other thantransparent
Safari Mobile
Safari Mobile 7.0+ (and likely earlier versions too) suffers from a bug where click
events aren't fired on elements that aren't typically interactive (e.g. <div>
) and which also don't have event listeners directly attached to the elements themselves (i.e. event delegation is being used). See this live example for a demonstration. See also Safari's docs on making elements clickable and the definition of "clickable element".
Known workarounds for this bug:
- Set
cursor
: pointer;
on the element or any of its ancestors. - Add a dummy
onclick="void(0)"
attribute to the element or any of its ancestors up to but not including<body>
. - Use a typically interactive element (e.g.
<a>
) instead of one that isn't typically interactive (e.g.<div>
). - Stop using
click
event delegation.
Safari Mobile considers the following elements to be typically interactive (and thus they aren't affected by this bug):
<a>
(but it must have anhref
)<area>
(but it must have anhref
)<button>
<img>
<input>
<label>
(but it must be associated with a form control)<textarea>
- This list is incomplete; you can help MDN by doing further testing/research and expanding it.
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Edge | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
On disabled form elements | (Yes)[1] | No support | (Yes)[2] | No support | (Yes)[1] | ? |
Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|
Basic support | ? | ? | ? | ? | ? |
On disabled form elements | ? | ? | ? | ? | ? |
[1] Only works for <textarea>
elements and some <input>
element types.
[2] Internet Explorer only triggers the click
event on <input>
elements of type checkbox
or radio
when the element is double-clicked.