Memoization with closures from FrontEndMasters algo course

Memoi

const memoizedClosureTimes10 = () => {
  let cache = {};
  return (n) => {
    if (n in cache) {
      console.log(`Fetching from cache: ${n}`);
      return cache[n];
    } else {
      console.log(`Calculating result~~`);
      let result = n * 10;
      cache[n] = result;
      return result;
    }
  };
};
// Making the argument n private to the function is to make it modular
// You can refer to it multiple times and every time you get a new cached version, make it n,m and make it more general

const memoClosureTimes10 = memoizedClosureTimes10(); // this just saves the return function to the variable

try {
  console.log(`Task 3 calculated value: ${memoClosureTimes10(9)}`);
  console.log(`Task 3 cached value: ${memoClosureTimes10(8)}`); // Check the function by changing this to 9
} catch (e) {
  console.error(`Task 3: ${e}`);
}