About JS's addeventlistener and some common events

function true)

The last parameter in the AddEventListener determines the order in which the event responds;

If true, the event is executed in the order of AddEventListener----The onclick event of the label----Document.onclick

If the order of the event is false for the OnClick event of the label----Document.onclick----AddEventListener

Mouse events

Document.addeventlistener (' MouseDown ', MouseDown); Document.addeventlistener (' click ', MouseClick); Document.addeventlistener (' MouseUp ', MouseUp);

Touch events

Document.addeventlistener (' Touchstart ', Touchstart);d ocument.addeventlistener (' touchend ', Touchend) ;       Touchstart event: Triggers when the finger touches the screen, even if there is already a finger on the screen that triggers the       //Touchmove event: A continuous trigger when the finger is sliding on the screen. During this event, the call to the Preventdefault () event can block       the scrolling//Touchend event: triggered when the finger is left on the screen.       //Touchcancel event: triggered when the system stops tracking touch. The exact departure time for this event is not specified in the documentation, but to guess
         (The performance on an iOS device is a call to automatically end the Touchstart event after a period of time)

Each touch event comes with three properties     touches: An array of touch objects that represent the touching operations that are currently being traced.　　     targettouches: An array of touch objects that are specific to the event target. Changetouches: Represents the array of touch objects that have changed since the last touch                     each touches comes with         ClientX: Touch the x-coordinate of the target in the viewport.         ClientY: Touch the y-coordinate of the target in the viewport.         identifier: Identifies the unique ID of the touch.         PageX: Touch the x-coordinate of the target in the page.         Pagey: Touch the y-coordinate of the target in the page.         ScreenX: Touch the x-coordinate of the target in the screen.         ScreenY: Touch the y-coordinate of the target in the screen. Target         : Touch destination DOM node destination

Support:

WebKit browser in iOS version safari, Android version WebKit, bada version dolfin, BlackBerry 10.1+ in os6+, Opera Mobile Phantom and LG Proprietary OS. Currently only the iOS version of Safari supports multi-touch. PC version of Firefox 6+ and Chrome also supports touch events

code Example 1

var gotouch=function() {       alert (' Touchstartok ');} Document.addeventlistener ("Touchstart", Gotouch);



public override function AddEventListener (
    Type:string,
    Listener:function,
    Usecapture:boolean = False,
    Priority:int = 0,
    Useweakreference:boolean = False
): void

code Example 2

function Go () {   //...     }
false );  

// or listener is directly a function .                
function false );  
document.getElementById ("Testbutton"). RemoveEventListener ("click", Go);    // Delete listener events 

About JS's addeventlistener and some common events