Method _markForCheck

src/material/radio/radio.ts:626–630

* Marks the radio button as needing checking for change detection. * This method is exposed because the parent radio group will directly * update bound properties of the radio button.

()

   * update bound properties of the radio button.
   */
  _markForCheck() {
    // When group value changes, the button will not be notified. Use `markForCheck` to explicit
    // update radio button's status
    this._changeDetector.markForCheck();
  }

  ngOnInit() {
    if (this.radioGroup) {