Run results for: array find vs object key search

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 16_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/111.0.5563.72 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 111

Operating system: iOS 16.3

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
obj key	1996118.6 Ops/sec
array.find	1718666.1 Ops/sec

Tests:

obj key
const array = [ { id: 1, name: "John", age: 25 }, { id: 2, name: "Jane", age: 30 }, { id: 3, name: "Bob", age: 40 }, { id: 4, name: "Alice", age: 35 }, { id: 5, name: "Tom", age: 28 }, { id: 6, name: "Emily", age: 32 }, { id: 7, name: "Peter", age: 45 }, { id: 8, name: "Amy", age: 27 }, { id: 9, name: "David", age: 38 }, { id: 10, name: "Sarah", age: 33 }, { id: 11, name: "Mike", age: 29 }, { id: 12, name: "Sara", age: 36 }, { id: 13, name: "Jack", age: 42 }, { id: 14, name: "Lisa", age: 26 }, { id: 15, name: "Oliver", age: 31 }, { id: 16, name: "Grace", age: 37 }, { id: 17, name: "Tim", age: 41 }, { id: 18, name: "Eva", age: 24 }, { id: 19, name: "Harry", age: 34 }, { id: 20, name: "Mia", age: 39 }, { id: 21, name: "Alex", age: 23 }, { id: 22, name: "Laura", age: 43 }, { id: 23, name: "Max", age: 44 }, { id: 24, name: "Lucy", age: 26 }, { id: 25, name: "Luke", age: 28 }, { id: 26, name: "Emma", age: 30 }, { id: 27, name: "Ryan", age: 36 }, { id: 28, name: "Liam", age: 29 }, { id: 29, name: "Sophie", age: 31 }, { id: 30, name: "Daniel", age: 33 }, { id: 31, name: "Hannah", age: 27 }, { id: 32, name: "William", age: 40 }, { id: 33, name: "Chloe", age: 32 }, { id: 34, name: "Eric", age: 45 }, { id: 35, name: "Lily", age: 38 }, { id: 36, name: "Finn", age: 42 }, { id: 37, name: "Ava", age: 35 }, { id: 38, name: "Leo", age: 24 }, { id: 39, name: "Julia", age: 37 }, { id: 40, name: "Connor", age: 28 }, { id: 41, name: "Zoe", age: 33 }, { id: 42, name: "Henry", age: 41 }, { id: 43, name: "Molly", age: 26 }, ]; const getResult = (id) => { return array.find((item) => { return item.id === id ? item : null; }); }; getResult(43)
array.find
const obj = { 1: { name: "John", age: 25 }, 2: { name: "Jane", age: 30 }, 3: { name: "Bob", age: 40 }, 4: { name: "Alice", age: 35 }, 5: { name: "Tom", age: 28 }, 6: { name: "Emily", age: 32 }, 7: { name: "Peter", age: 45 }, 8: { name: "Amy", age: 27 }, 9: { name: "David", age: 38 }, 10: { name: "Sarah", age: 33 }, 11: { name: "Mike", age: 29 }, 12: { name: "Sara", age: 36 }, 13: { name: "Jack", age: 42 }, 14: { name: "Lisa", age: 26 }, 15: { name: "Oliver", age: 31 }, 16: { name: "Grace", age: 37 }, 17: { name: "Tim", age: 41 }, 18: { name: "Eva", age: 24 }, 19: { name: "Harry", age: 34 }, 20: { name: "Mia", age: 39 }, 21: { name: "Alex", age: 23 }, 22: { name: "Laura", age: 43 }, 23: { name: "Max", age: 44 }, 24: { name: "Lucy", age: 26 }, 25: { name: "Luke", age: 28 }, 26: { name: "Emma", age: 30 }, 27: { name: "Ryan", age: 36 }, 28: { name: "Liam", age: 29 }, 29: { name: "Sophie", age: 31 }, 30: { name: "Daniel", age: 33 }, 31: { name: "Hannah", age: 27 }, 32: { name: "William", age: 40 }, 33: { name: "Chloe", age: 32 }, 34: { name: "Eric", age: 45 }, 35: { name: "Lily", age: 38 }, 36: { name: "Finn", age: 42 }, 37: { name: "Ava", age: 35 }, 38: { name: "Leo", age: 24 }, 39: { name: "Julia", age: 37 }, 40: { name: "Connor", age: 28 }, 41: { name: "Zoe", age: 33 }, 42: { name: "Henry", age: 41 }, 43: { name: "Molly", age: 26 }, }; const getResult = (id) => { return obj[id] ? obj[id] : null; }; getResult('43')

Run results for: array find vs object key search

obj key

array.find