Run results for: convert and lookup

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Obj array lookup

72.9M/s

Set lookup

2.1M/s

Map lookup

2.0M/s

Object lookup

1.6M/s

View exact numbers

Test name	Executions per second
✓ Obj array lookup	72,909,504 Ops/sec
Set lookup	2,081,490 Ops/sec
Map lookup	1,953,914 Ops/sec
Object lookup	1,617,322 Ops/sec

Script Preparation code:

var objList= [
  { name: "Lorem" },
  { name: "ipsum" },
  { name: "dolor" },
  { name: "sit" },
  { name: "amet" },
  { name: "consectetur" },
  { name: "adipisicing" },
  { name: "elit." },
  { name: "Ullam" },
  { name: "nesciunt" },
  { name: "debitis," },
  { name: "facilis" },
  { name: "qui" },
  { name: "possimus" },
  { name: "minus" },
  { name: "rerum" },
  { name: "velit" },
  { name: "saepe" },
  { name: "magnam," },
  { name: "voluptatum" },
  { name: "quos" },
  { name: "eveniet" },
  { name: "ducimus" },
  { name: "facere" },
  { name: "harum" },
  { name: "itaque" },
  { name: "atque" },
  { name: "assumenda" },
  { name: "reiciendis" },
  { name: "exercitationem" }
]

Tests:

Object lookup
var object = objList.reduce((acc, team) => { acc[team.name] = team return acc; }, {}); var b = object["consectetur"] b = object["consectetur"]
Map lookup
var map = objList.reduce((acc, team) => { acc.set(team.name, team); return acc; }, new Map()); var b = map.has("consectetur") b = map.has("consectetur")
Set lookup
var set = objList.reduce((acc, team) => { acc.add(team.name); return acc; }, new Set()); var b = set.has("consectetur") b = set.has("consectetur")
Obj array lookup
var b = objList.some(o=>o.name == "consectetur") b = objList.some(o=>o.name == "consectetur")