Angular Resize Observer

Install the library

npm install --save @mikael-sundstrom/resize-observer

app.module.ts

import { BrowserModule } from '@angular/platform-browser'
import { NgModule } from '@angular/core'
import { AppComponent } from './app.component'

// Import the library module
import { ResizeObserverModule } from '@mikael-sundstrom/resize-observer'

@NgModule({
	declarations: [
		AppComponent
	],
	imports: [
		BrowserModule,

		// Specify ResizeObserverModule library as an import
		ResizeObserverModule
	],
	providers: [],
	bootstrap: [ AppComponent ]
})

export class AppModule { }

app.component.ts

import { Component } from '@angular/core';

// Import the resized event model
import { ResizedObserver } from '@mikael-sundstrom/resize-observer';

@Component({...})

class MyComponent {
	width!: number;
	height!: number;

	onResized(event: ResizedEvent) {
		this.width = event.newRect.width;
		this.height = event.newRect.height;
	}
}

app.component.html

<div (resized)="onResized($event)"></div>

Browser Compatibility

It uses the built-in ResizeObserver from the browser.

This package is based on https://www.npmjs.com/package/angular-resize-event v3.2.0