isnumeric/isNumeric.js

Determine if a JavaScript object is numeric

var isNumeric = function (obj) {
    obj = typeof(obj) === "string" ? obj.replace(/,/g, "") : obj;
    return !isNaN(parseFloat(obj)) && isFinite(obj) && Object.prototype.toString.call(obj).toLowerCase() !== "[object array]";
};

if (typeof (exports) !== "undefined") {
    if (typeof (module) !== "undefined" && module.exports) {
        exports = module.exports = isNumeric;
    }
    exports.isNumeric = isNumeric;
}