Image preview before upload in angular 5

Question

.html

Answer 1

Kindly change like --> this.url = event.target.result;

readURL(event:any) {
    if (event.target.files && event.target.files[0]) {
        var reader = new FileReader();

        reader.onload = (event:any) = > {
            this.url = event.target.result;
        }

        reader.readAsDataURL(event.target.files[0]);
    }
}