memoized-5.js

//Frequency checker, keeps count in object
const v = (n) => {
  let cache = {}
  return b = (n) => {
    if (cache[n]) { console.log("cached"); cache[n].count++; console.log(cache[n].count, " times ran"); return cache[n].value }
    else { cache[n] = {}; cache[n].count = 1; cache[n].value = n +5; return cache[n] }
  }
}

var vic = v() // can be reset if initialized again using var, but let or const will not allow you to do so. This method is preferred over a global declaration since you can reset the cache without restarting the entire program.
vic(1)
vic(2)
vic(2)
vic(3)