function memoization(key) {
key = key || '';
return memoization.cache[key] = typeof memoization.cache[key] === 'undefined' ? getRandom(256) : memoization.cache[key];
}
memoization.cache = {};
function getRandom(max){
return Math.floor(Math.random() * max);
}
console.log(memoization('test'));
console.log(memoization('test'));
console.log(memoization('test1'));