Performing Component Initialization
Explore Angular's component lifecycle hooks, starting with OnInit for safe initialization of input properties, followed by OnDestroy for cleanup tasks, and OnChanges to monitor input updates. Understand best practices for constructors and how to leverage these hooks to manage component data and resources effectively.
We'll cover the following...
In this lesson, we will understand the hooks of component lifecycle. Let’s start with the OnInit hook, which is the most basic lifecycle event of a component.
The OnInit lifecycle hook implements the ngOnInit method, which is called during the component initialization. At this stage, all input bindings and data-bound properties have been set appropriately, and we can safely use them. Using the component constructor to access them may be tempting, but their values would not have been set at that point. We will understand the previous concept using the following example:
Open the
product-detail.component.tsfile and add aconstructorthat logs the value of thename...