check-ethereum-scanner/Ethereum-Renounced-Contract-Scanner/node_modules/es5-ext/error/is-error.js

Safety checks for new Ethereum tokens

"use strict";

var objToString = Object.prototype.toString, id = objToString.call(new Error());

module.exports = function (value) {
	return (value && (value instanceof Error || objToString.call(value) === id)) || false;
};