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

sbdm

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