HTML elements can have event attributes that trigger actions in the browser, such as launching a piece of JavaScript when a user clicks on an HTML element. The event attributes listed below can be inserted into HTML tags to define event behavior. Differences between HTML 4.01 and HTML 5 New events in HTML 5: onabort, onbeforeunload, onconte
HTML elements can have event attributes that trigger behavior in the browser, such as starting a piece of JavaScript when the user clicks on an HTML element. The event attributes listed below can be inserted into HTML tags to define event behavior.
New events in HTML 5: onabort, onbeforeunload, oncontextmenu, ondrag, ondragend, ondragenter, ondragleave, ondragover, ondragstart, ondrop, onerror, onmessage, onmousewheel, onresize, onscroll, onunload.
HTML 4.01 attribute no longer supported: onreset.
Properties | Value | Description | 4 | 5 |
---|---|---|---|---|
onabort | script | Run the script when the abort event occurs. | 5 | |
onbeforeonload | script | Run before the element loads script. | 5 | |
onblur | script | When an element loses focus Run the script. | 4 | 5 |
onchange | script | When the element changes Run the script. | 4 | 5 |
onclick | script | When the mouse clicks Scripting is allowed. | 4 | 5 |
script | When the menu is triggered when running the script.5 | |||
script | Run when the mouse is double-clicked script.4 | 5 | ||
script | As long as the script is being Dragging allows scripting.5 | |||
script | At the end of the drag operation when running the script.5 | |||
script | When the element is dragged When a legal drop target is reached, the script is executed.5 | |||
script | When an element leaves legal When placing a target.5 | |||
script | As long as the element is legal The script is executed when the drop target is dragged. | 5 | ||
script | At the start of the drag operation when executing the script. | 5 | ||
script | When the element is being dragged Execute the script when running. | 5 | ||
script | The process when the element is loaded Execute the script when an error occurs. | 5 | ||
script | When an element gets focus Execute the script. | 4 | 5 | |
script | When the button is pressed when executing the script. | 4 | 5 | |
script | When the key is pressed Execute the script when downloading. | 4 | 5 | |
script | When the button is released when executing the script. | 4 | 5 | |
script | When the document loads Execute the script. | 4 | 5 | |
script | When the message event triggers when executing the script. | 5 | ||
script | When the mouse button is pressed when executing the script. | 4 | 5 | |
script | When the mouse pointer moves when executing the script. | 4 | 5 | ##onmouseover |
script | When the mouse pointer moves Execute the script when on an element. | 45 | onmouseout | |
script | When the mouse pointer moves out element to execute the script. | 45 | ##onmouseup | |
When the mouse button is released Execute script when opened. 4 | 5 | ##onmousewheel | ||
When the mouse wheel scrolls when executing the script. | 5 | onreset | ||
When the form is reset Execute the script. not support. | 4 | onresize | ||
When the element is resized Run the script. | 5 | onscroll | ||
When the element scroll bar is Execute script when scrolling. | 5 | onselect | ||
When the element is selected Execute the script. | 4 | 5onsubmit | ||
When the form is submitted Run the script. | 4 | 5onunload | ||
When the document is unloaded Run the script. | 5 |
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