HTML Event Properties
HTML DOM events allow JavaScript to register different event handlers on elements in an HTML document.
Events are normally used in combination with functions, and the function will not be executed before the event occurs (such as when a user clicks a button).
For a tutorial about Events, read our JavaScript Events Tutorial.
HTML DOM Event Properties
| Property | Description | Belongs To |
|---|---|---|
| altKey | Returns whether the "ALT" key was pressed when the mouse event was triggered | MouseEvent |
| altKey | Returns whether the "ALT" key was pressed when the key event was triggered | KeyboardEvent, TouchEvent |
| animationName | Returns the name of the animation | AnimationEvent |
| bubbles | Returns whether or not a specific event is a bubbling event | Event |
| button | Returns which mouse button was pressed when the mouse event was triggered | MouseEvent |
| buttons | Returns which mouse buttons were pressed when the mouse event was triggered | MouseEvent |
| cancelable | Returns whether or not an event can have its default action prevented | Event |
| charCode | Deprecated (Avoid using it) Use the key property instead |
KeyboardEvent |
| changeTouches | Returns a list of all the touch objects whose state changed between the previous touch and this touch | TouchEvent |
| clientX | Returns the horizontal coordinate of the mouse pointer, relative to the current window, when the mouse event was triggered | MouseEvent, TouchEvent |
| clientY | Returns the vertical coordinate of the mouse pointer, relative to the current window, when the mouse event was triggered | MouseEvent, TouchEvent |
| clipboardData | Returns an object containing the data affected by the clipboard operation | ClipboardData |
| code | Returns the code of the key that triggered the event | KeyboardEvent |
| composed | Returns whether the event is composed or not | Event |
| ctrlKey | Returns whether the "CTRL" key was pressed when the mouse event was triggered | MouseEvent |
| ctrlKey | Returns whether the "CTRL" key was pressed when the key event was triggered | KeyboardEvent, TouchEvent |
| currentTarget | Returns the element whose event listeners triggered the event | Event |
| data | Returns the inserted characters | InputEvent |
| dataTransfer | Returns an object containing the data being dragged/dropped, or inserted/deleted | DragEvent, InputEvent |
| defaultPrevented | Returns whether or not the preventDefault() method was called for the event | Event |
| deltaX | Returns the horizontal scroll amount of a mouse wheel (x-axis) | WheelEvent |
| deltaY | Returns the vertical scroll amount of a mouse wheel (y-axis) | WheelEvent |
| deltaZ | Returns the scroll amount of a mouse wheel for the z-axis | WheelEvent |
| deltaMode | Returns a number that represents the unit of measurements for delta values (pixels, lines or pages) | WheelEvent |
| detail | Returns a number that indicates how many times the mouse was clicked | UiEvent |
| elapsedTime | Returns the number of seconds an animation has been running | AnimationEvent |
| elapsedTime | Returns the number of seconds a transition has been running | |
| eventPhase | Returns which phase of the event flow is currently being evaluated | Event |
| getModifierState() | Returns an array containing target ranges that will be affected by the insertion/deletion | MouseEvent |
| inputType | Returns the type of the change (i.e "inserting" or "deleting") | InputEvent |
| isComposing | Returns whether the state of the event is composing or not | InputEvent, KeyboardEvent |
| isTrusted | Returns whether or not an event is trusted | Event |
| key | Returns the key value of the key represented by the event | KeyboardEvent |
| key | Returns the key of the changed storage item | StorageEvent |
| keyCode | Deprecated (Avoid using it) Use the key property instead |
KeyboardEvent |
| location | Returns the location of a key on the keyboard or device | KeyboardEvent |
| lengthComputable | Returns whether the length of the progress can be computable or not | ProgressEvent |
| loaded | Returns how much work has been loaded | ProgressEvent |
| metaKey | Returns whether the "META" key was pressed when an event was triggered | MouseEvent |
| metaKey | Returns whether the "meta" key was pressed when the key event was triggered | KeyboardEvent, TouchEvent |
| MovementX | Returns the horizontal coordinate of the mouse pointer relative to the position of the last mousemove event | MouseEvent |
| MovementY | Returns the vertical coordinate of the mouse pointer relative to the position of the last mousemove event | MouseEvent |
| newValue | Returns the new value of the changed storage item | StorageEvent |
| newURL | Returns the URL of the document, after the hash has been changed | HasChangeEvent |
| offsetX | Returns the horizontal coordinate of the mouse pointer relative to the position of the edge of the target element | MouseEvent |
| offsetY | Returns the vertical coordinate of the mouse pointer relative to the position of the edge of the target element | MouseEvent |
| oldValue | Returns the old value of the changed storage item | StorageEvent |
| oldURL | Returns the URL of the document, before the hash was changed | HasChangeEvent |
| onemptied | When something bad happens and the media file is suddenly unavailable (like unexpectedly disconnects) | |
| pageX | Returns the horizontal coordinate of the mouse pointer, relative to the document, when the mouse event was triggered | MouseEvent |
| pageY | Returns the vertical coordinate of the mouse pointer, relative to the document, when the mouse event was triggered | MouseEvent |
| persisted | Returns whether the webpage was cached by the browser | PageTransitionEvent |
| propertyName | Returns the name of the CSS property associated with the animation or transition | AnimationEvent, TransitionEvent |
| pseudoElement | Returns the name of the pseudo-element of the animation or transition | AnimationEvent, TransitionEvent |
| region | MouseEvent | |
| relatedTarget | Returns the element related to the element that triggered the mouse event | MouseEvent |
| relatedTarget | Returns the element related to the element that triggered the event | FocusEvent |
| repeat | Returns whether a key is being hold down repeatedly, or not | KeyboardEvent |
| screenX | Returns the horizontal coordinate of the mouse pointer, relative to the screen, when an event was triggered | MouseEvent |
| screenY | Returns the vertical coordinate of the mouse pointer, relative to the screen, when an event was triggered | MouseEvent |
| shiftKey | Returns whether the "SHIFT" key was pressed when an event was triggered | MouseEvent |
| shiftKey | Returns whether the "SHIFT" key was pressed when the key event was triggered | KeyboardEvent, TouchEvent |
| state | Returns an object containing a copy of the history entries | PopStateEvent |
| storageArea | Returns an object representing the affected storage object | StorageEvent |
| target | Returns the element that triggered the event | Event |
| targetTouches | Returns a list of all the touch objects that are in contact with the surface and where the touchstart event occured on the same target element as the current target element | TouchEvent |
| timeStamp | Returns the time (in milliseconds relative to the epoch) at which the event was created | Event |
| total | Returns the total amount of work that will be loaded | ProgressEvent |
| touches | Returns a list of all the touch objects that are currently in contact with the surface | TouchEvent |
| transitionend | A CSS transition has completed | TransitionEvent |
| type | Returns the name of the event | Event |
| url | Returns the URL of the changed item's document | StorageEvent |
| which | Deprecated (Avoid using it) Use the button property instead |
MouseEvent |
| which | Deprecated (Avoid using it) Use the key property instead |
KeyboardEvent |
| view | Returns a reference to the Window object where the event occurred | UiEvent |
| x | Alias for clientX | MouseEvent |
| y | Alias for clientY | MouseEvent |
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