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isPromiseLike

JS TODO

Returns true if an object looks like a Promise, false otherwise.

Check if the object is not null, its typeof matches either object or function and if it has a .then property, which is also a function.

const isPromiseLike = (obj) =>
obj !== null &&
(typeof obj === "object" || typeof obj === "function") &&
typeof obj.then === "function";
isPromiseLike({
then: function () {
return "";
},
}); // true
isPromiseLike(null); // false
isPromiseLike({}); // false