Preview multiple image before upload file in Angular

Question

How can I preview multiple images that I have selected before uploading them in Angular?

I have managed to do it but only with one image, even though I sele

Answer 1

As shown in this stackblitz, you can store the image URLs in an array and display them with ngFor:

The array of URLs is filled in detectFiles:

export class AppComponent {

  urls = new Array();

  detectFiles(event) {
    this.urls = [];
    let files = event.target.files;
    if (files) {
      for (let file of files) {
        let reader = new FileReader();
        reader.onload = (e: any) => {
          this.urls.push(e.target.result);
        }
        reader.readAsDataURL(file);
      }
    }
  }
}