Method $watch

packages/upgrade/src/common/src/angular1.ts:53–53

(exp: Ng1Expression, fn?: (a1?: any, a2?: any) => void)

  $parent: IScope;
  $root: IScope;
  $watch(exp: Ng1Expression, fn?: (a1?: any, a2?: any) => void): Function;
  $on(event: string, fn?: (event?: any, ...args: any[]) => void): Function;
  $destroy(): any;
  $apply(exp?: Ng1Expression): any;