Benchmark: diffenceWith - MeasureThat.net

Script Preparation code:

var oldArr = [
  {
    "id": 52
  },
  {
    "id": 76
  },
  {
    "id": 13
  },
  {
    "id": 96
  },
  {
    "id": 27
  },
  {
    "id": 8
  },
  {
    "id": 23
  },
  {
    "id": 63
  },
  {
    "id": 25
  }
]

var newArr = [
{
    "id": 52
  },
  {
    "id": 76
  },
  {
    "id": 13
  },
  {
    "id": 96
  },
  {
    "id": 27
  },
  {
    "id": 8
  },
  {
    "id": 23
  },
  {
    "id": 63
  },
  {
    "id": 25
  },
  {
    "id": 1
  },
]

Tests:

Native 1
newArr.reduce((ids, {id}) => { return ids.concat( !oldArr.some(oldItem => oldItem.id === id) ? id : [] ); }, [])
Native 2
newArr.filter(({ id }) => !oldArr.some(o => o.id === id))

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Native 1
Native 2

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 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.72 Safari/537.36

Browser/OS: Chrome 90 on Linux

View result in a separate tab

Test name	Executions per second
Native 1	488912.7 Ops/sec
Native 2	1093344.0 Ops/sec

diffenceWith (version: 0)

Comparing performance of: Native 1 vs Native 2

Created: 2 years ago by: Guest

Jump to the latest result

Native 1

Native 2

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A