Function _throwInvalidValueAccessorError

packages/forms/src/directives/shared.ts:362–369

(dir: AbstractControlDirective)

}

function _throwInvalidValueAccessorError(dir: AbstractControlDirective) {
  const loc = _describeControlLocation(dir);
  throw new RuntimeError(
    RuntimeErrorCode.NG_VALUE_ACCESSOR_NOT_PROVIDED,
    `Value accessor was not provided as an array for form control with ${loc}. ` +
      `Check that the \`NG_VALUE_ACCESSOR\` token is configured as a \`multi: true\` provider.`,
  );
}

export function isPropertyUpdated(changes: {[key: string]: any}, viewModel: any): boolean {
  if (!changes.hasOwnProperty('model')) return false;