Angular 2 conditional Validators.required?

Question

How should I go about conditionally requiring a form field? I made a custom validator, but the conditional variables that I pass to the custom validator are static and remai

Answer 1

Simply use enable() and disable() methods on AbstractControl.

this.myControl.valueChanges.subscribe(
      checked => {
        if (checked) {
          this.otherControl.enable();
        } else {
          this.otherControl.disable();
        }
      }
    );