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/Angular

OnInit

interface

npm Package @angular/core
Module import { OnInit } from '@angular/core';
Source core/src/metadata/lifecycle_hooks.ts

Lifecycle hook that is called after data-bound properties of a directive are initialized.

Interface Overview

interface OnInit { 
  ngOnInit(): void
}

How To Use

@Component({selector: 'my-cmp', template: `...`})
class MyComponent implements OnInit {
  ngOnInit() {
    // ...
  }
}

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.

See "Lifecycle Hooks Guide".

Members

ngOnInit(): void

© 2010–2017 Google, Inc.
Licensed under the Creative Commons Attribution License 4.0.
https://angular.io/api/core/OnInit