Input and Output In Angular || Event Emitter in Angular ||
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#angular #updateangular #coding #codeplay Input is used to receive data in whereas Output is used to send data out. Output sends data out by exposing event producers, usually EventEmitter objects.
@Input() and @Output() act as the API, or application programming interface, of the child component in that they allow the child to communicate with the parent. Think of @Input() and @Output() like ports or doorways—@Input() is the doorway into the component allowing data to flow in while @Output() is the doorway out of the component, allowing the child component to send data out.
Use the @Input() decorator in a child component or directive to let Angular know that a property in that component can receive its value from its parent component. It helps to remember that the data flow is from the perspective of the child component. So an @Input() allows data to be input into the child component from the parent component.
Use the @Output() decorator in the child component or directive to allow data to flow from the child out to the parent.
An @Output() property should normally be initialized to an Angular EventEmitter with values
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