Web Reference: A lifecycle hook that is called when the value of one or more component or directive inputs change. This includes both signal-based and decorator-based inputs. Define an ngOnChanges() method to handle the changes. Jan 27, 2020 · Of course, a hook only execute under certain conditions set in the current change detection cycle. This article presents the lifecycle hooks in order of their execution (if they all execute). Jun 28, 2025 · ngOnChanges() is the first lifecycle hook called when a component is created and every time one or more input-bound properties change. It receives a SimpleChanges object containing the...
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