Check the account type

/**
 * @description Functions from N/config module encapsulated
 * @type {{isProduction(): boolean}}
 */
const configFunction = {
    /**
     * To know whether the account is Production Environment or not
     * @returns {boolean} true when account is Production, false in all other scenarios
     */
    isProduction() {
        var companyInfo = config.load({
            type: config.Type.COMPANY_INFORMATION
        });
        var ns_companyid = companyInfo.getValue({
            fieldId: 'companyid'
        }).toString().trim().toLowerCase();
        log.debug('ns_companyid', ns_companyid);

        if (Number.isNaN(Number(ns_companyid)))  //Will be NaN for Sandbox or Release Preview accounts
            return false; // return false when script moved to production
        return true;
    }
};