DEV Community

Discussion on: Have a Handy JS Snippet You Want to Share?

View post
Collapse
 
jarpi profile image
Josep • • Edited

Quick unhasher (not a generic one, but it does the job)



const seed = 7
const prime = 37
const letters = "acdegilmnoprstuw"

const unhash = (hash, acc, letterOffset = 0) => {
  if (hash === seed) return acc
  for (;hash%prime>0;hash--,letterOffset++);
  return unhash(hash/prime, letters[letterOffset] + acc)
}