Run results for: testing ternary vs &&

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.0 Safari/605.1.15

Browser: Safari 17

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
spread ternary	910627.1 Ops/sec
spread &&	1195137.4 Ops/sec

Script Preparation code:

function translateBySpread (a) {
  const b = {
    ...(a.id && { id: a.id }),
    ...(a.foo && { foo: a.foo})
  }
  return b;
}

function translateByTernary (a) {
  const b = {
    ...(a.id ? { id: a.id } : {}),
    ...(a.foo ? { foo: a.foo} : {})
  }
  return b;
}

Tests:

spread ternary
translateByTernary({ id: '12345', type: 'article' });
spread &&
translateBySpread({ id: '12345', type: 'article' });

Run results for: testing ternary vs &&

spread ternary

spread &&