}//删除事件绑定function unBindEvent(element, eventName, func) {varevents =this['the'+eventName];//如果不存在一个事件序列if(!events) {returnfalse; }//检测该函数是否存在该事件序列当中for(vari=0; i<events.length; i++) {if(func ===events[i]) { [].splice.call(events, i,1);returntr...
一、John Resig 所写的 addEvent() 函数:http://ejohn.org/projects/flexible-javascript-events/ functionaddEvent( obj, type, fn ) { if( obj.attachEvent ) { obj['e'+type+fn]=fn; obj[type+fn]=function(){obj['e'+type+fn]( window.event );} obj.attachEvent('on'+type, obj[type+fn...
Add an event listener that fires when a user resizes the window: window.addEventListener("resize",function(){ document.getElementById("demo").innerHTML=sometext; }); Try it Yourself » Passing Parameters When passing parameter values, use an "anonymous function" that calls the specified funct...
Parameters: eventNameRequired.Stringthat specifies the name of the event to listen for. For a complete list of events, see the page forEvents in JavaScript. This parameter is case sensitive! functionRequired. Represents the event listener function to be called when the event occurs. ...
element.removeEventListener(eventType, listener) } } let createInterval= (time) => (listener) =>{ let id=setInterval(listener, time)return() =>{ clearInterval(id) } } let addButtonListener= addListener('#button') let addButtonClickListener= addButtonListener('click') ...
JS {get; set;} protected override void OnParametersSet() { base.OnParametersSet(); subscription?.Dispose(); subscription = Parent?.Subscribe(this); } public void OnCompleted() => subscription = null; public void OnError(Exception error) => subscription = null; public void OnNext(Element...
The most common use of JavaScript in Dynamics 365 Customer Engagement (on-premises) is to add functions as event handlers for entity form events. For more information, seeClient scripting in Customer Engagement using JavaScript. Command bar (ribbon) commands ...
It's an object with key-value pairs where value is a string. The layer's refresh() method needs to be called if the customParameters are updated at runtime. Example // send a custom parameter to your special service let layer = new MapImageLayer({ url: serviceUrl, customParameters: {...
[l+"Event",l+"PageView",l+"Exception",l+"Trace",l+"DependencyData",l+"Metric",l+"PageViewPerformance","start"+d,"stop"+d,"start"+p,"stop"+p,"addTelemetryInitializer","setAuthenticatedUserContext","clearAuthenticatedUserContext","flush"]),h.SeverityLevel={Verbose:0,Information:1,...
add([-100,40]); let point = collection.at(0); // point.x = -100; point.y = 40 }); on Method on(type, listener){Object} Registers an event handler on the instance. Call this method to hook an event with a listener. Parameters type String|String[] An event or an array ...