isCallable Available since v0.7

Determine if a value is "callable" - a function that is not a class constructor.

import { isCallable } from "@aedart/support/reflections";

isCallable(null); // false
isCallable({}); // false
isCallable([]); // false
isCallable(class {}); // false

isCallable(function() {}); // true
isCallable(() => {}); // true
isCallable(Array); // true

Acknowledgement

The source code of the above shown methods is heavily inspired by Denis Pushkarev's Core-js implementation of the Function.isCallable / Function.isConstructor proposal (License MIT).

See also isClassConstructor().