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Mariusz Nowak d2bdb5c704 feat: Add Object.isThenable
Currently Object.isPromise mirrors it 1:1,
but with next major we will also validate its constructor
2018-03-16 14:50:42 +01:00

18 lines
367 B
JavaScript

"use strict";
module.exports = function (t, a) {
var promise;
a(t(), false);
a(t(null), false);
a(t("promise"), false);
a(t({}), false);
a(t(function () {}), false);
a(t({ then: {} }), false);
a(t({ then: function () {} }), true);
promise = function () {};
promise.then = {};
a(t(promise), false);
promise.then = function () {};
a(t(promise), true);
};