Benchmark: Array.from(iterable) vs [...iterable]

Array.from(iterable) vs [...iterable] (version: 1)

Comparing performance of: `arrayFromSmallArray vs arrayFromSmallSet vs arrayFromSmallIterable vs arraySpreadSmallArray vs arraySpreadSmallSet vs arraySpreadSmallIterable vs arrayFromBigArray vs arrayFromBigSet vs arrayFromBigIterable vs arraySpreadBigArray vs arraySpreadBigSet vs arraySpreadBigIterable`

Created: 5 days ago by: Guest

Go to the latest result

Script Preparation code:

const smallArray = new Array();
const smallSet = new Set();
for (let i = 0; i < 10; ++i) {
	smallArray.push(i);
  smallSet.add(i)
}
const smallIterable = function*() {
  for (let i = 0; i < 10; ++i) {
    yield i;
  }
}

const bigArray = new Array();
const bigSet = new Set();
for (let i = 0; i < 10000; ++i) {
	bigArray.push(i);
  bigSet.add(i)
}
const bigIterable = function*() {
  for (let i = 0; i < 10000; ++i) {
    yield i;
  }
}

Tests:

arrayFromSmallArray
const arrayFromSmallArray = Array.from(smallArray);
arrayFromSmallSet
const arrayFromSmallSet = Array.from(smallSet);
arrayFromSmallIterable
const arrayFromSmallIterable = Array.from(smallIterable());
arraySpreadSmallArray
const arraySpreadSmallArray = [...smallArray];
arraySpreadSmallSet
const arraySpreadSmallSet = [...smallSet];
arraySpreadSmallIterable
const arraySpreadSmallIterable = [...smallIterable()];
arrayFromBigArray
const arrayFromBigArray = Array.from(bigArray);
arrayFromBigSet
const arrayFromBigSet = Array.from(bigSet);
arrayFromBigIterable
const arrayFromBigIterable = Array.from(bigIterable());
arraySpreadBigArray
const arraySpreadBigArray = [...bigArray];
arraySpreadBigSet
const arraySpreadBigSet = [...bigSet];
arraySpreadBigIterable
const arraySpreadBigIterable = [...bigIterable()];

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
arrayFromSmallArray
arrayFromSmallSet
arrayFromSmallIterable
arraySpreadSmallArray
arraySpreadSmallSet
arraySpreadSmallIterable
arrayFromBigArray
arrayFromBigSet
arrayFromBigIterable
arraySpreadBigArray
arraySpreadBigSet
arraySpreadBigIterable

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 3 days ago)

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/151.0.0.0 Mobile Safari/537.36

Browser/OS: Chrome Mobile 151 on Android

View result in a separate tab

arraySpreadSmallArray

44.6M/s

arrayFromSmallArray

42.2M/s

arraySpreadSmallSet

25.8M/s

arrayFromSmallSet

23.4M/s

arraySpreadSmallIterable

1.8M/s

arrayFromSmallIterable

1.7M/s

arraySpreadBigArray

512K/s

arrayFromBigArray

437K/s

arrayFromBigSet

50K/s

arraySpreadBigSet