梁美英 / programming · Files

'use strict';
module.exports = function (x) {
	if (typeof x !== 'number') {
		throw new TypeError('Expected a number');
	}

	return x === 300 ||
		x === 301 ||
		x === 302 ||
		x === 303 ||
		x === 305 ||
		x === 307 ||
		x === 308;
};