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Angular 4 Interview questions experienced Angular 4 Interview questions Animations Questions: How do you define transition between two states in Angular? How do you define a wildcard state? Architecture Questions: What is a good use case for ngrx/store? Can you talk about a bug related to a race condition, how to solve it and how to test it? API Questions: What does this code do: @ HostBinding ( ' class.valid ' ) isValid ; < div * ngIf = ' someObservableData | async as data; else loading ' >{{data}}</ div > < ng-template # loading > Loading Data... </ ng-template > Why would you use renderer methods instead of using native element methods? What is the point of calling renderer.invokeElementMethod(rendererEl, methodName)? How would you control size of an element on resize of the window in a component? What would be a good use for NgZone service? How would you protect a component being activated throu...

MVC5-Call Back function Usage A callback function is executed once the current action is over.It works asynchronsouly function LoadDASummaryListUserFields(clFieldsFrom) {     var qs = '?clFieldsFrom=' + clFieldsFrom;     CallWebApiGetPartial('CallList', 'GetPerformaSummaryListFields', CBLoadCLDASummaryListUserUserFields, qs); } It is a sample jquery function. Here we are calling a function inside  CallWebApiGetPartial .It takes 4 parameters 1,Our Controller 2,Action 3,CallbackFunction 4,Query String Which may need to be passed function CallWebApiGetPartial(controller, action, callBack, qryString) { //alert(serviceData); //alert(controller + action);    FnShowLoader(); if ((qryString === undefined) || (qryString === null)) { qryString = ''; } $.ajax({ url: "/" + controller + "/" + action + qryString, dataType: "html", success: function (data) { FNHideLoader(); callBack(dat...