30-seconds-of-code/snippets/sdbm.md

sdbmHashAlgorithm

This algorithm is a simple hash-algorithm that hashes it input string s into a whole number.

Use split('') and Array.reduce() to create a hash of the input string, utilizing bit shifting.

const sdbm = str => {
  let arr = str.split('');
  return arr.reduce((hashCode, currentVal) =>
    hashCode = currentVal.charCodeAt(0) + (hashCode << 6) + (hashCode << 16)  - hashCode
  ,0)
}

console.log(sdbm("name")) // -3521204949
console.log(sdbm("age")) // 808122783