Run results for: JS BigInt big number performance v9

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_3_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) FxiOS/136.2 Mobile/15E148 Safari/605.1.15

Browser: Mobile Safari 18

Operating system: iOS 18.3.2

Device Platform: Mobile

Date tested: 16 days ago

Test name	Executions per second
BigInt	4513699.5 Ops/sec
Number	65226244.0 Ops/sec

Script Preparation code:

var bigIntL = 1000000n
var bigIntM = 50n
var bigInt2 = 2n
var numberL = 1000000
var numberM = 50
var number2 = 2

​x
 
var bigIntL = 1000000nvar bigIntM = 50nvar bigInt2 = 2nvar numberL = 1000000var numberM = 50var number2 = 2​

Tests:

BigInt

a = bigIntL
b = bigIntM
c = a - b
c = a % b
c = a * b
c = a + b
c = bigInt2 ** b

 
a = bigIntLb = bigIntMc = a - bc = a % bc = a * bc = a + bc = bigInt2 ** b

Number

a = numberL
b = numberM
c = a - b
c = a % b
c = a * b
c = a + b
c = number2 ** b

 
a = numberLb = numberMc = a - bc = a % bc = a * bc = a + bc = number2 ** b

Run results for: JS BigInt big number performance v9

Compare Number vs BigInt for big numbers

BigInt

Number