Benchmark: bit flags: number vs bigint

Script Preparation code:

var big_value	= 0x00FF00FF00FF00FFn;
var big_mask	= 0x00FFFFFF00FFFFFFn;
var num_value	= 0x00FF00FF;
var num_mask	= 0x00FFFFFF;
var num2_value	= 0x00FF00FF;
var num2_mask	= 0x00FFFFFF;

Tests:

Number
let outer, outer2; let inverse = ~num_value; for(let i = 0; i < 10000; ++i) { // outer = ((num_value & num_mask) === num_mask) && (num2_value & num2_mask) === num2_mask; outer2 = ((num_value & num_mask) !== 0) && ((num2_value & num2_mask) !== 0); }
Big Number
let outer, outer2 for(let i = 0; i < 10000; ++i) { // outer = (big_value & big_mask) === big_mask; outer2 = (big_value & big_mask) !== 0n; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Number
Big Number

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36

Browser/OS: Chrome 145 on Windows

View result in a separate tab

Test name	Executions per second
Number	55520.0 Ops/sec
Big Number	29469.9 Ops/sec

Related benchmarks:

bit flags: number vs bigint (version: 2)

just comparing existence. probably could do more but just want to test single op

Comparing performance of: Number vs Big Number

Created: 2 months ago by: Registered User

Jump to the latest result

Number

Big Number

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A