Benchmark: Test for reduce vs flatmap 2

Script Preparation code:

var metadata = {
  'product:1': 'blah',
  'product:2': 'blah',
  'product:10': 'blah',
};

var hits = [
  {
    id: 1,
    objectID: 1
  },
  {
    id: 2,
    objectID: 2
  },
  {
    id: 3,
    objectID: 3
  },
  {
    id: 3,
    objectID: 3
  },
  {
    id: 4,
    objectID: 4
  },
  {
    id: 5,
    objectID: 5
  },
  {
    id: 6,
    objectID: 6
  },
  {
    id: 7,
    objectID: 7
  },
  {
    id: 8,
    objectID: 8
    },
  {
    id: 9,
    objectID: 9
  },
  {
    id: 10,
    objectID: 10
  }
];

Tests:

flatMap
hits.flatMap((hit)=>{ const image = metadata?.[`product:${hit.id}`]; if (image) { return [ { ...hit, renderType: 'item' }, { ...hit, objectID: `${hit.id}-image`, id: `${hit.id}-image`, image, renderType: 'image' } ]; } return { ...hit, renderType: 'item' }; });
reduce
hits.reduce((list, hit) => { const image = metadata?.[`product:${hit.id}`]; if (image) { return [ ...list, { ...hit, renderType: 'item' }, { ...hit, objectID: `${hit.id}-image`, id: `${hit.id}-image`, image, renderType: 'image' }]; } return [...list, { ...hit, renderType: 'item' }]; }, []);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
flatMap
reduce

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.55 Safari/537.36

Browser/OS: Chrome 96 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
flatMap	80168.2 Ops/sec
reduce	91285.1 Ops/sec

Test for reduce vs flatmap 2 (version: 0)

Comparing performance of: flatMap vs reduce

Created: 2 years ago by: Guest

Jump to the latest result

flatMap

reduce

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A