There are many events which one can use. It performs the same function as found in the Angular … Click here to check it out. Returning an object of class/struct type is the most robust way of returning multiple values from a function. RxJS Observables, compared to the old Promises in Angular 1, seem to be more complicated to understand, but they are far more flexible. The void keyword, used in the previous examples, indicates that the function should not return a value. Returning multiple values from a function using an array. Angular gives you various ways to fetch data from HTML input in the controller. Angular KeyValue pipe uses defaultComparator function to sort the key value array. Using event Binding (1-way) We can use event binding with HTML input to get data in the controller. An Observable sets up an Observer and connects it to a “thing” we want to get values from.That “thing” is called a producer and is a source of values, perhaps from the click or input event or something more complex such as communication over HTTP. C# Task Return Value with Examples. Angular Material Select is created using which is a form control for selecting a value from a set of options. Creating a Filter Pipe. A function cannot return multiple values. To set and get a value for , use value, ngModel, formControl and formControlName property. At the time of calling a function, the function signature must be the same. We spend more time reading our code than writing it. The angular.equals() Function in AngularJS is used to compare two objects or two values whether these are same or not. If you want the function to return a value, you can use a data type (such as int, string, etc.) At the end of this article, you will understand How to Return a Value … Inside a function values are returned by using return statement. A function is a block of code that you can use multiple times in an application. Example 1: R Function with return. 4. slice() - This function is used to slice an array. The cons to this are if our Observable has multiple values we must manually unsubscribe with ngOnDestroy life cycle hook. function updates the img DOM element's src property with the current value of the srcURL variable. If the two values are same, it returns TRUE else it will return FALSE.. Syntax: angular.equals(val1, val2) Where val1 and val2 are the values or the objects to be compared.