Run results for: totalQuantitiesCount 2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Browser: Chrome 127

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
reduce	2.0 Ops/sec
forEach if	2.0 Ops/sec
for of	2.0 Ops/sec
for of if	1.8 Ops/sec
for	2.0 Ops/sec
forEach	2.0 Ops/sec

Script Preparation code:

function generateTestData(size) {
  const carts = {};
  for (let i = 0; i < size; i++) {
    const cartType = `cart_${i}`;
    carts[cartType] = Math.random() > 0.1 ? { totalQuantityCount: Math.floor(Math.random() * 100) } : null;
  }
  return carts;
}

var state = {
  carts: {
    carts: generateTestData(1000000)
  }
};

Tests:

reduce
var totalQuantitiesCount = 0; Object.values(state.carts.carts).reduce((totalQuantitiesCount, cart) => totalQuantitiesCount + (cart?.totalQuantityCount ?? 0), 0);
forEach if
var totalQuantitiesCount = 0; Object.values(state.carts.carts).forEach((cart) => { if (cart !== null) totalQuantitiesCount += cart.totalQuantityCount; });
for of
var totalQuantitiesCount = 0; for (const cart of Object.values(state.carts.carts)) { totalQuantitiesCount += cart?.totalQuantityCount ?? 0; }
for of if
var totalQuantitiesCount = 0; for (const cart of Object.values(state.carts.carts)) { if (cart !== null) totalQuantitiesCount += cart.totalQuantityCount; }
for
var totalQuantitiesCount = 0; const carts = Object.values(state.carts.carts); for (let i = 0; i < carts.length; i++) { const cart = carts[i]; if (cart !== null) { totalQuantitiesCount += cart.totalQuantityCount; } }
forEach
var totalQuantitiesCount = 0; Object.values(state.carts.carts).forEach((cart) => totalQuantitiesCount += (cart?.totalQuantityCount ?? 0));

Run results for: totalQuantitiesCount 2

reduce

forEach if

for of

for of if

for

forEach