What it does
Lifecycle hook that is called after data-bound properties of a directive are initialized.
How to use
.
Interface Overview
Interface Description
ngOnInit
is called right after the directive's data-bound properties have been checked for the
first time, and before any of its children have been checked. It is invoked only once when the
directive is instantiated.
exported from core/index, defined in core/src/metadata/lifecycle_hooks.ts