Run results for: test hash

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4922.0 Safari/537.36

Browser: Chrome 101

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
hash with just hash	4137416.0 Ops/sec
hash with simpelHash	1706156.0 Ops/sec
hashcode	511338.1 Ops/sec

Script Preparation code:

var hash = function(s) {
    /* Simple hash function. */
    var a = 1, c = 0, h, o;
    if (s) {
        a = 0;
        /* jshint plusplus:false bitwise:false */
        for (h = s.length - 1; h >= 0; h--) {
            o = s.charCodeAt(h);
            a = (a<<6&268435455) + o + (o<<14);
            c = a & 266338304;
            a = c!==0?a^c>>21:a;
        }
    }
    return String(a);
};

var simpleHash = function(str) {
  let hash = 0;
  for (let i = 0; i < str.length; i++) {
    const char = str.charCodeAt(i);
    hash = (hash << 5) - hash + char;
    hash &= hash; // Convert to 32bit integer
  }
  return new Uint32Array([hash])[0].toString(36);
};

function hashCode(s) {
    for(var i = 0, h = 0; i < s.length; i++)
        h = Math.imul(31, h) + s.charCodeAt(i) | 0;
    return h;
}

Tests:

hash with just hash
var hp = hash('/api/planets/1');
hash with simpelHash
var hp2 = simpleHash('/api/planets/1');
hashcode
var hp3 = hashCode('/api/planets/1');

hash with just hash

hash with simpelHash

hashcode