Angular TypeScript how to assign Date

How can i bind date to date selector?

const TodayDate = "19-11-2020";
ngOnInit() {
  this._MyregisterForm = this.formBuilder.group({
    today_Date:[this.TodayDate, [Validators.required]]
  });
}

HTML

<form [formGroup]="_MyregisterForm" (ngSubmit)="onSubmit()">
  <input type="date" formControlName="today_Date" value="{{TodayDate}}">
</form>

No need to put value attribute in input when are using formControlName

Stackblitz Demo

component.html

<form [formGroup]="_MyregisterForm" (ngSubmit)="onSubmit()">
    <input type="date" formControlName="today_Date">
    <button type="submit">Submit</button>
</form>

component.ts

import { Component, VERSION } from "@angular/core";
import { FormBuilder, FormGroup, Validators } from "@angular/forms";
import { DatePipe } from "@angular/common";

@Component({
  selector: "my-app",
  templateUrl: "./app.component.html",
  styleUrls: ["./app.component.css"],
  providers: [DatePipe]
})
export class AppComponent {
  _MyregisterForm: FormGroup;
  TodayDate = "19-11-2020";

  constructor(private formBuilder: FormBuilder, private datePipe: DatePipe) {
    this._MyregisterForm = this.formBuilder.group({
      today_Date: [this.getTransformedDate(this.TodayDate), Validators.required]
    });
  }

  private getTransformedDate(date) {
    let date1 = date.split("-");
    let newDate = date1[2] + "-" + date1[1] + "-" + date1[0];
    return newDate;
  }

  onSubmit() {
    const date = this.datePipe.transform(
      this._MyregisterForm.get("today_Date").value,
      "dd-MM-yyyy"
    );
    alert(date);
  }
}