blob: 20ee36dde08398e985d8f6f9db1ec6452519bcfc (
plain)
1
2
3
4
5
6
7
8
|
/**
* Tests to see if the object is an ES2015 (ES6) Promise
* @see {@link https://www.ecma-international.org/ecma-262/6.0/#sec-promise-objects}
* @param value the object to test
*/
export function isPromise(value: any): value is PromiseLike<any> {
return !!value && typeof (<any>value).subscribe !== 'function' && typeof (value as any).then === 'function';
}
|