Why reset a FormGroup instead of replacing it?-CodePudding

I could do myForm.Reset() but I could also do myForm = new FormControl().

I understand the former will avoid subscription leaks if there are subscriptions on the form state, but are there other reasons?

CodePudding user response：

The value of Reset is more apparent when working with a form that contains multiple controls.

this.productForm = this.fb.group({
  productName: ['', [Validators.required,
                     Validators.minLength(3),
                     Validators.maxLength(50)]],
  productCode: ['', Validators.required],
  starRating: ['', NumberValidators.range(1, 5)],
  tags: this.fb.array([]),
  description: ''
});

Then a form reset resets the entire form without having to recreate the entire form group.