在Angular应用程序中获取所选文本

<textarea [(ngModel)]="selectedText"></textarea>

selectedText: string;

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

@Component({
  selector: 'app-your-component',
  templateUrl: './your-component.component.html',
  styleUrls: ['./your-component.component.css']
})
export class YourComponent {
  selectedText: string;

  @HostListener('mouseup', ['$event'])
  onMouseUp(event: MouseEvent) {
    this.selectedText = window.getSelection().toString();
  }
}