code: function(db) {
  		function check_javascript(js, plv8, ERROR) {
  			var module = {'exports':{}};
  			try {
  				var fun = new Function("module", "exports", js);
  				fun(module, module.exports);
  			} catch (e) {
  				plv8.elog(ERROR, e);
  				return false;
  			}
  			return true;
  		}
  		return db.query('CREATE OR REPLACE FUNCTION check_javascript(js text) RETURNS boolean LANGUAGE plv8 VOLATILE AS ' + NoPg._escapeFunction(check_javascript, ['js', 'plv8', 'ERROR']));
  	}
docs: #1 Function for checking that only valid javascript goes into libs table (01_js_library_environment.sql)