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@flywine93/ngx-dyncmp

v9.0.7

Published

A lightweight dynamic component directive with full life-cycle support for inputs and outputs.

Downloads

4

Readme

NgxDyncmp

npm npm LICENSE

A lightweight dynamic component directive with full life-cycle support for inputs and outputs.

NPM

| Angular | ngx-dyncmp| NPM package | | :---: | :---: | :---: | | 9.x.x | 9.x.x | @flywine93/ngx-dyncmp@^9.0.0 |

Demo

dynamic component demo online

stackblitz demo

Installation

npm install @flywine93/ngx-dyncmp --save

Features

  • Lightweight
  • Data synchronization
  • A single input attribute triggers update

Usage

Import NgxDyncmpModule where you need to render dynamic components:

import { NgxDyncmpModule } from '@flywine93/ngx-dyncmp';

@NgModule({
  imports: [NgxDyncmpModule],
})
export class MyModule {}

ngxDyncCmp Directive

The following example will dynamically create a Todo component.

<ng-container *ngxDyncCmp="component"></ng-container>
 <!-- or -->
 <!-- <ng-container [ngxDyncCmp]="component"></ng-container> -->
export class AppComponent {
  component = TotoComponent;
  // ...
}

inputs Property

If the dynamic component has Input properties, you can bind them with the inputs property.

todo component

<div>
    <mat-checkbox [(ngModel)]="todo.checked" (change)="change($event)">{{todo.text}}</mat-checkbox>
</div>
export class TotoComponent {
  @Input() todo: {checked: boolean, text: string};
}

app component

<ng-container
    [ngxDyncCmp]="component"
    [inputs]="todoInputs">
</ng-container>
export class AppComponent {
  component = TotoComponent;
  todoInputs = {
    todo: {
      checked: false,
      text: 'Do Homework'
    }
  };
}
  • The todo within this todoInputs is the name of TotoComponent's Input property.
  • When a deep copy of the todo value within todoInputs occurs, the todo value within TotoComponent will be changed.

outputs Property

When dynamic components have output properties inside, you can bind them using the outputs property.

todo component

<div>
    <mat-checkbox [(ngModel)]="todo.checked" (change)="change($event)">{{todo.text}}</mat-checkbox>
</div>
export class TotoComponent {
  @Input() todo: {checked: boolean, text: string};
  @Output() selected = new EventEmitter<{checked: boolean, text: string}>();

  change(event: MatCheckboxChange): void {
    this.selected.emit(this.todo);
  }
}

app component

<ng-container
    [ngxDyncCmp]="component"
    [inputs]="todoInputs"
    [outputs]="todoOutputs">
</ng-container>
export class AppComponent {
  component = TotoComponent;
  todoInputs = {
    todo: {
      checked: false,
      text: 'Do Homework'
    }
  };

  todosOutputs = {
    selected: (e: any) => {
      console.log(e)
    }
  };
}

License

The MIT License (see the LICENSE file for the full text)