Run results for: lodash xor perf v2

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.45 Safari/537.36

Browser: Chrome 96

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
lodash xor	3029.7 Ops/sec
with Sets	6343.2 Ops/sec
isEqual + sort	950.9 Ops/sec
diff x 2	9356.4 Ops/sec

Script Preparation code:

function dec2hex (dec) {
  return dec < 10
    ? '0' + String(dec)
    : dec.toString(16)
}

function generateId (len) {
  var arr = new Uint8Array((len || 40) / 2)
  window.crypto.getRandomValues(arr)
  return Array.from(arr, dec2hex).join('')
}

var a = []
var b = []
for( let i = 0; i < 1000; i++)
{
  a[i] = generateId(16)
  b[i] = generateId(16)
}

Tests:

lodash xor
const res = _.xor(a, b).length === 0;
with Sets
var as = new Set(a) var bs = new Set(b) const res = a .filter((row_id) => bs.has(row_id)) .concat(b.filter((row_id) => !as.has(row_id))).length === 0;
isEqual + sort
const res = _.isEqual(_.sortBy(a), _.sortBy(b));
diff x 2
const res = _.difference(a, b).length === 0 && _.difference(b, a).length === 0;

Run results for: lodash xor perf v2

Searching for faster solution for _.xor(a, b)

lodash xor

with Sets

isEqual + sort

diff x 2