ngx-element-life

An angular directive to easy listen when elements get initalised or destroyed.

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Installation

• npm install ngx-element-life
• install @angular/core, @angular/platform-browser and rxjs - they are peer dependencies

For standard webpack, angular-cli and tsc builds

• import ElementLifeModule from ngx-element-life:

import { ElementLifeModule } from 'ngx-element-life'

• add ElementLifeModule to the imports of your NgModule:

@NgModule({
  imports: [
    ...,

    ElementLifeModule
  ],
  ...
})
class YourModule { ... }

• use <div element-life (init)="handleInit()"></div> in your templates to listen on an elements life cycle - init, viewInit and destroy.

For SystemJS builds (Config)

• add ngx-element-life to your paths:

paths: {
  ...
  'ngx-element-life': 'node_modules/ngx-element-life/bundles/ngx-element-life.umd.js'
}

• set format and dependencies in packages:

packages: {
  'ngx-element-life': {
    format: 'cjs'
  }
}

• follow the steps of For standard webpack and tsc builds

ElementLife Directive

Usage

• selector: element-life - add it as attribute to a html-tag
• outputs:
  • init - notifies when the element is initialised
  • viewInit - notifies when child views of the element are init
  • destroy - notifies when the element gets destroyed

Example

<div
  element-life
  (init)="handleInit()"
  (viewInit)="handleViewInit()"
  (destroy)="handleDestroy()"
>
  <p>hello</p>
</div>

class MyComponent {
  handleInit() {
    // execute after init
  }

  handleViewInit() {
    // execute after view init
  }

  handleDestroy() {
    // execute after destroy
  }
}