Run results for: Object Values Filtering

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1 Safari/605.1.15

Browser: Safari 13

Operating system: Mac OS X 10.15.4

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
[key]	716.0 Ops/sec
truthy and [key]	5246.4 Ops/sec
in	664.6 Ops/sec
truthy and in	4247.5 Ops/sec
not null and in	4448.1 Ops/sec

Script Preparation code:

datasets = {
    trailer: {},
    location: {}
  },
  uuidv4 = () => {
    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
      var r = Math.random() * 16 | 0, v = c == 'x' ? r : (r & 0x3 | 0x8);
      return v.toString(16);
    });
  },
  count = 10000

for(let step = 0; step < 1000; step++){
  const
    location = {
      uuid: uuidv4(),
      number: Math.random(),
      number1: Math.random(),
      number2: Math.random(),
      number3: Math.random(),
      number4: Math.random()
    }

  datasets.location[location.uuid] = location
}

for(let step = 0; step < count; step++ ){
  const
    trailer = {
      uuid: uuidv4(),
      number: Math.random(),
      number1: Math.random(),
      number2: Math.random(),
      number3: Math.random(),
      number4: Math.random(),
      number5: Math.random(),
      number6: Math.random(),
      number7: Math.random(),
      number8: Math.random(),
      number9: Math.random(),
      number10: Math.random(),
      number11: Math.random(),
      number12: Math.random(),
      number13: Math.random(),
      number14: Math.random(),
      number15: Math.random(),
      location: step%10 == 0 ? Object.keys(datasets.location)[Math.random()*100|0] : null
    }

  datasets.trailer[trailer.uuid] = trailer
}

trailers = Object.values(datasets.trailer)

Tests:

[key]
trailers.filter(trailer => datasets.location[trailer.location])
truthy and [key]
trailers.filter(trailer => trailer.location && datasets.location[trailer.location])
in
trailers.filter(trailer => trailer.location in datasets.location)
truthy and in
trailers.filter(trailer => trailer.location && trailer.location in datasets.location)
not null and in
trailers.filter(trailer => trailer.location !== null && trailer.location in datasets.location)

Run results for: Object Values Filtering

[key]

truthy and [key]

in

truthy and in

not null and in