What Typescript type is Angular2 event

Question

If I have the following button in an html file

Do somethi         


        

Answer 1

Some commonly used events and their related names (MouseEvent, FocusEvent, TouchEvent, DragEvent, KeyboardEvent):

| MouseEvent | FocusEvent |  TouchEvent | DragEvent | KeyboardEvent |
|:----------:|:----------:|:-----------:|:---------:|:-------------:|
|    click   |    focus   |  touchstart |    drag   |    keypress   |
|   mouseup  |    blur    |  touchmove  |    drop   |     keyup     |
| mouseleave |   focusin  | touchcancel |  dragend  |    keydown    |
|  mouseover |  focusout  |   touchend  |  dragover |               |

The generic Event is associated to:

• close
• change
• invalid
• play
• reset
• scroll
• select
• submit
• toggle
• waiting

If you dig in Typescript's repository, dom.generated.d.ts provides a global events interface (credit goes to Eric's answer) where you may find all the event handlers mappings at line 5725:

interface GlobalEventHandlersEventMap {
  "abort": UIEvent;
  "animationcancel": AnimationEvent;
  "animationend": AnimationEvent;
  "animationiteration": AnimationEvent;
  "animationstart": AnimationEvent;
  "auxclick": MouseEvent;
  "blur": FocusEvent;
  "cancel": Event;
  "canplay": Event;
  "canplaythrough": Event;
  "change": Event;
  "click": MouseEvent;
  "close": Event;
  "contextmenu": MouseEvent;
  "cuechange": Event;
  "dblclick": MouseEvent;
  "drag": DragEvent;
  "dragend": DragEvent;
  "dragenter": DragEvent;
  "dragexit": Event;
  "dragleave": DragEvent;
  "dragover": DragEvent;
  "dragstart": DragEvent;
  "drop": DragEvent;
  "durationchange": Event;
  "emptied": Event;
  "ended": Event;
  "error": ErrorEvent;
  "focus": FocusEvent;
  "focusin": FocusEvent;
  "focusout": FocusEvent;
  "gotpointercapture": PointerEvent;
  "input": Event;
  "invalid": Event;
  "keydown": KeyboardEvent;
  "keypress": KeyboardEvent;
  "keyup": KeyboardEvent;
  "load": Event;
  "loadeddata": Event;
  "loadedmetadata": Event;
  "loadend": ProgressEvent;
  "loadstart": Event;
  "lostpointercapture": PointerEvent;
  "mousedown": MouseEvent;
  "mouseenter": MouseEvent;
  "mouseleave": MouseEvent;
  "mousemove": MouseEvent;
  "mouseout": MouseEvent;
  "mouseover": MouseEvent;
  "mouseup": MouseEvent;
  "pause": Event;
  "play": Event;
  "playing": Event;
  "pointercancel": PointerEvent;
  "pointerdown": PointerEvent;
  "pointerenter": PointerEvent;
  "pointerleave": PointerEvent;
  "pointermove": PointerEvent;
  "pointerout": PointerEvent;
  "pointerover": PointerEvent;
  "pointerup": PointerEvent;
  "progress": ProgressEvent;
  "ratechange": Event;
  "reset": Event;
  "resize": UIEvent;
  "scroll": Event;
  "securitypolicyviolation": SecurityPolicyViolationEvent;
  "seeked": Event;
  "seeking": Event;
  "select": Event;
  "selectionchange": Event;
  "selectstart": Event;
  "stalled": Event;
  "submit": Event;
  "suspend": Event;
  "timeupdate": Event;
  "toggle": Event;
  "touchcancel": TouchEvent;
  "touchend": TouchEvent;
  "touchmove": TouchEvent;
  "touchstart": TouchEvent;
  "transitioncancel": TransitionEvent;
  "transitionend": TransitionEvent;
  "transitionrun": TransitionEvent;
  "transitionstart": TransitionEvent;
  "volumechange": Event;
  "waiting": Event;
  "wheel": WheelEvent;
}