


A brief discussion on the attribute list of JavaScript events_Basic knowledge
One of the new features of HTML 4.0 is the ability to enable HTML events to trigger actions in the browser, such as starting a piece of JavaScript when the user clicks on an HTML element. Below is a list of properties that can be inserted into HTML tags to define the behavior of the event.
Attributes | When did this incident occur... |
---|---|
onabort | The loading of the image was interrupted. |
onblur | The element loses focus. |
onchange | The content of thefield was changed. |
onclick | Event handler called when the user clicks on an object. |
ondblclick | Event handler called when the user double-clicks an object. |
onerror | An error occurred while loading the document or image. |
onfocus | Theelement gets focus. |
onkeydown | A keyboard key was pressed. |
onkeypress | A keyboard key is pressed and released. |
onkeyup | A keyboard key was released. |
onload | A page or image is loaded. |
onmousedown | The mouse button is pressed. |
onmousemove | The mouse is moved. |
onmouseout | The mouse moves away from an element. |
onmouseover | Move the mouse over an element. |
onmouseup | The mouse button is released. |
onreset | The reset button is clicked. |
onresize | The window or frame was resized. |
onselect | Text is selected. |
onsubmit | The confirmation button is clicked. |
onunload | User exits the page. |
Mouse/Keyboard Properties
Attributes | Description |
---|---|
altKey | Returns whether "ALT" was pressed when the event was triggered. |
button | Returns which mouse button was clicked when the event was triggered. |
clientX | Returns the horizontal coordinate of the mouse pointer when the event is triggered. |
clientY | Returns the vertical coordinate of the mouse pointer when the event is triggered. |
ctrlKey | Returns whether the "CTRL" key was pressed when the event was triggered. |
metaKey | Returns whether the "meta" key was pressed when the event was triggered. |
relatedTarget | Returns the node related to the event's target node. |
screenX | Returns the horizontal coordinate of the mouse pointer when an event is triggered. |
screenY | Returns the vertical coordinate of the mouse pointer when an event is triggered. |
shiftKey | Returns whether the "SHIFT" key was pressed when the event was triggered. |
Events of common HTML elements:
onclick (click),
ondblclick (double click),
onkeydown (key down),
onkeypress (click the button),
onkeyup (key release),
onmousedown (mouse down),
onmousemove (mouse movement),
onmouseout (the mouse leaves the element range),
onmouseover (mouse moves to the element range),
onmouseup (mouse button release),
oncontextmenu (triggered when the right-click of the mouse displays the "right-click menu" in the browser)
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