Run results for: comparison between proxy and simple function call on object

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.3.1 Safari/605.1.15

Browser: Safari 18

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
setting array	198.8 Ops/sec
setting object	19.5 Ops/sec
setting array proxy	19.5 Ops/sec
setting object proxy	52.0 Ops/sec
getting array	41.4 Ops/sec
getting object	31.1 Ops/sec
getting array proxy	17.8 Ops/sec
getting object proxy	54.3 Ops/sec

Script Preparation code:

var o = {}, ar=[];

function set(o, k, v){
  o[k] =v;
}
function get(o, k){
  return o[k];
}

var proxyHandler = {
  set(o,k,v){
    o[k]=v;
    return true;
  },
  get(o,k){return o[k];}
};

var op = new Proxy({}, proxyHandler);
var arp = new Proxy([], proxyHandler);


function randomInt(min, max){
  return Math.floor(Math.random() * (max - min + 1)) + min;
}
function randomString(length){
  var result = '';
  var characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
  var charactersLength = characters.length;
  for ( var i = 0; i < length; i++ ) {
    result += characters.charAt(Math.floor(Math.random() * charactersLength));
  }
  return result;
}
var keys = [];
for(var i=0; i<20; i++){
  keys.push(randomString(randomInt(2, 10)));
}
var count = 1000000

Tests:

setting array
for(var i=0; i<count; i++){ let i = randomInt(0, 20); set(ar, i, keys[i]); }
setting object
for(var i=0; i<count; i++){ let i = randomInt(0, 20); set(o, keys[i], i); }
setting array proxy
for(var i=0; i<count; i++){ let i = randomInt(0, 20); arp[i] = keys[i]; }
setting object proxy
for(var i=0; i<count; i++){ let i = randomInt(0, 20); op[keys[i]] = i; }
getting array
for(var i=0; i<count; i++){ let i = randomInt(0, 20); get(ar, i); }
getting object
for(var i=0; i<count; i++){ let i = randomInt(0, 20); get(ar, keys[i]); }
getting array proxy
for(var i=0; i<count; i++){ let i = randomInt(0, 20); arp[i]; }
getting object proxy
for(var i=0; i<count; i++){ let i = randomInt(0, 20); op[keys[i]]; }

Run results for: comparison between proxy and simple function call on object

comparison between proxy and simple function call on object for setting and getting

setting array

setting object

setting array proxy

setting object proxy

getting array

getting object

getting array proxy

getting object proxy