my-idlers/node_modules/es5-ext/number/is-number.js

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"use strict";
var objToString = Object.prototype.toString, id = objToString.call(1);
module.exports = function (value) {
return (
typeof value === "number" ||
(value instanceof Number || (typeof value === "object" && objToString.call(value) === id))
);
};