ephemeris

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JavaScript implementation of Moshier's ephemeris calculations for sun, planets, comets, asteroids and stars.

9 lines (6 loc) • 273 B

JavaScript

"use strict";

var objToString = Object.prototype.toString
  , isFunctionStringTag = RegExp.prototype.test.bind(/^[object [A-Za-z0-9]*Function]$/);

module.exports = function (value) {
	return typeof value === "function" && isFunctionStringTag(objToString.call(value));
};