Run results for: Hashing algo

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.1 Safari/605.1.15

Browser: Safari 16

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
MurmurHash1	97266.4 Ops/sec
Cyrb53	21748.4 Ops/sec
SuperFastHash	217443.1 Ops/sec

Script Preparation code:

var str = '[["backgroundColor","rgba(0, 0, 0, 0.003)"],["border","none"],["boxShadow","inset 0 -2px 1px rgba(0, 0, 0, 0.03)"],["boxSizing","border-box"],["color","inherit"],["fontFamily","inherit"],["fontSize","24px"],["fontWeight","inherit"],["height","65px"],["lineHeight","1.4em"],["margin","0"],["outline","none"],["padding","16px 16px 16px 60px"],["placeholder",{"fontStyle":"italic","fontWeight":300,"color":"#e6e6e6"}],["position","relative"],["width","100%"]]';
function MurmurHash1(key, seed = 0) {
    var m = 3332679571, h = Math.imul(key.length, m) ^ seed;

    for(var i = 0, b = key.length & -4; i < b; i += 4) {
        h += key[i+3] << 24 | key[i+2] << 16 | key[i+1] << 8 | key[i];
        h = Math.imul(h, m); h ^= h >>> 16;
    }
    
    switch(key.length & 3) {
        case 3: h += key[i+2] << 16;
        case 2: h += key[i+1] << 8;
        case 1: h += key[i];
                h = Math.imul(h, m); h ^= h >>> 16;
    }

    h = Math.imul(h, m); h ^= h >>> 10;
    h = Math.imul(h, m); h ^= h >>> 17;

    return h >>> 0;
};
function Cyrb53(key, seed = 0) {
  const A = 2654435761;
  const B = 1597334677;
  const C = 2246822507;
  const D = 3266489909;
  const E = 4294967296;
  const F = 2097151;

  let h1 = 0xdeadbeef ^ seed;
  let h2 = 0x41c6ce57 ^ seed;

  for (let index = 0, char; index < key.length; index++) {
    char = key.charCodeAt(index);

    h1 = Math.imul(h1 ^ char, A);
    h2 = Math.imul(h2 ^ char, B);
  }

  h1 = Math.imul(h1 ^ (h1 >>> 16), C) ^ Math.imul(h2 ^ (h2 >>> 13), D);
  h2 = Math.imul(h2 ^ (h2 >>> 16), C) ^ Math.imul(h1 ^ (h1 >>> 13), D);

  return E * (F & h2) + (h1 >>> 0);
};
function SuperFastHash(key) {
    if (!key) {return 0}
    var hash = key.length, tmp, len = key.length >>> 2, p = 0;

    for (var i = 0; i < len; i++) {
        hash += key[p] | key[p+1] << 8;
        tmp = ((key[p+2] | key[p+3] << 8) << 11) ^ hash;
        hash = (hash << 16) ^ tmp;
        hash += hash >>> 11;
        p += 4;
    }

    switch(key.length & 3) {
        case 3:
            hash += key[p] | key[p+1] << 8;
            hash ^= hash << 16;
            hash ^= key[p+2] << 18;
            hash += hash >>> 11;
            break;
        case 2:
            hash += key[p] | key[p+1] << 8;
            hash ^= hash << 11;
            hash += hash >>> 17;
            break;
        case 1:
            hash += key[p];
            hash ^= hash << 10;
            hash += hash >>> 1;
            break;
    }

    hash ^= hash << 3;
    hash += hash >>> 5;
    hash ^= hash << 4;
    hash += hash >>> 17;
    hash ^= hash << 25;
    hash += hash >>> 6;

    return hash >>> 0;
};

Tests:

MurmurHash1
MurmurHash1(str);
Cyrb53
Cyrb53(str);
SuperFastHash
SuperFastHash(str);