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Test whether an object is a promises/A+ object or constructor.
Test whether an object/function is a promises/A+ object/function or constructor. More powerful then is-promise.
npm i ispromise -Svar isPromise = require('ispromise');
isPromise(Promise) // false
isPromise(Promise.resolve()) // true
isPromise.isConstructor(Promise) // trueMIT@Jingchen Zhao