Running javascript on click

Element: click event

An element receives a click event when a pointing device button (such as a mouse’s primary mouse button) is both pressed and released while the pointer is located inside the element.

If the button is pressed on one element and the pointer is moved outside the element before the button is released, the event is fired on the most specific ancestor element that contained both elements.

click fires after both the mousedown and mouseup events have fired, in that order.

Syntax

Use the event name in methods like addEventListener() , or set an event handler property.

addEventListener("click", (event) => >); onclick = (event) => >; 

Event type

Event properties

This interface also inherits properties of its parents, UIEvent and Event . MouseEvent.altKey Read only Returns true if the alt key was down when the mouse event was fired. MouseEvent.button Read only The button number that was pressed (if applicable) when the mouse event was fired. MouseEvent.buttons Read only The buttons being pressed (if any) when the mouse event was fired. MouseEvent.clientX Read only The X coordinate of the mouse pointer in local (DOM content) coordinates. MouseEvent.clientY Read only The Y coordinate of the mouse pointer in local (DOM content) coordinates. MouseEvent.ctrlKey Read only Returns true if the control key was down when the mouse event was fired. MouseEvent.layerX Non-standard Read only Returns the horizontal coordinate of the event relative to the current layer. MouseEvent.layerY Non-standard Read only Returns the vertical coordinate of the event relative to the current layer. MouseEvent.metaKey Read only Returns true if the meta key was down when the mouse event was fired. MouseEvent.movementX Read only The X coordinate of the mouse pointer relative to the position of the last mousemove event. MouseEvent.movementY Read only The Y coordinate of the mouse pointer relative to the position of the last mousemove event. MouseEvent.offsetX Read only The X coordinate of the mouse pointer relative to the position of the padding edge of the target node. MouseEvent.offsetY Read only The Y coordinate of the mouse pointer relative to the position of the padding edge of the target node. MouseEvent.pageX Read only The X coordinate of the mouse pointer relative to the whole document. MouseEvent.pageY Read only The Y coordinate of the mouse pointer relative to the whole document. MouseEvent.relatedTarget Read only The secondary target for the event, if there is one. MouseEvent.screenX Read only The X coordinate of the mouse pointer in global (screen) coordinates. MouseEvent.screenY Read only The Y coordinate of the mouse pointer in global (screen) coordinates. MouseEvent.shiftKey Read only Returns true if the shift key was down when the mouse event was fired. MouseEvent.mozInputSource Non-standard Read only The type of device that generated the event (one of the MOZ_SOURCE_* constants). This lets you, for example, determine whether a mouse event was generated by an actual mouse or by a touch event (which might affect the degree of accuracy with which you interpret the coordinates associated with the event). MouseEvent.webkitForce Non-standard Read only The amount of pressure applied when clicking. MouseEvent.x Read only Alias for MouseEvent.clientX . MouseEvent.y Read only Alias for MouseEvent.clientY .

Usage notes

The MouseEvent object passed into the event handler for click has its detail property set to the number of times the target was clicked. In other words, detail will be 2 for a double-click, 3 for triple-click, and so forth. This counter resets after a short interval without any clicks occurring; the specifics of how long that interval is may vary from browser to browser and across platforms. The interval is also likely to be affected by user preferences; for example, accessibility options may extend this interval to make it easier to perform multiple clicks with adaptive interfaces.

Examples

HTML

JavaScript

const button = document.querySelector("button"); button.addEventListener("click", (event) =>  button.textContent = `Click count: $event.detail>`; >); 

Result

Try making rapid, repeated clicks on the button to increase the click count. If you take a break between clicks, the count will reset.

Specifications

Browser compatibility

See also

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onclick Event

The onclick event occurs when the user clicks on an HTML element.

Mouse Events

Event	Occurs When
onclick	The user clicks on an element
oncontextmenu	The user right-clicks on an element
ondblclick	The user double-clicks on an element
onmousedown	A mouse button is pressed over an element
onmouseenter	The pointer is moved onto an element
onmouseleave	The pointer is moved out of an element
onmousemove	The pointer is moving over an element
onmouseout	The mouse pointer moves out of an element
onmouseover	The mouse pointer is moved over an element
onmouseup	The mouse button is released over an element

See Also:

Tutorial:

Syntax

In JavaScript, using the addEventListener() method:

Technical Details

Bubbles:	Yes
Cancelable:	Yes
Event type:	MouseEvent
Supported HTML tags:	All exept: , , , , , , , , , , and

More Examples

Click a to display the date:

Click a element to change the text color:

Click me to change my color.

Another example on how to change the color of an element:

Click me to change my color.

Click to copy text from one input field to another:

function myFunction() document.getElementById(«field2»).value = document.getElementById(«field1»).value;
>

How to assign an «onclick» event to the window object:

function myFunction() document.getElementsByTagName(«BODY»)[0].style.backgroundColor = «yellow»;
>

Use onclick to create a dropdown:

function myFunction() document.getElementById(«myDropdown»).classList.toggle(«show»);
>

Browser Support

onclick is a DOM Level 2 (2001) feature.

It is fully supported in all browsers:

Chrome	Edge	Firefox	Safari	Opera	IE
Yes	Yes	Yes	Yes	Yes	9-11

COLOR PICKER

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