Benchmark: Various Ways to cast float to Integer

Tests:

Math.floor
let x = Math.floor(65531 / 65536 * 13000); return x;
Math.round
let x = Math.round(65531 / 65536 * 13000); return x;
Math.trunc
let x = Math.trunc(65531 / 65536 * 13000); return x;
parseInt
let x = parseInt("" + (65531 / 65536 * 13000) + ""); return x;
Double Negation
let x = ~~(65531 / 65536 * 13000); return x;
Bitwise XOR
let x = 65531 / 65536 * 13000 ^ 0; return x;
Bitwise OR
let x = 65531 / 65536 * 13000 | 0; return x;
Right Shift
let x = 65531 / 65536 * 13000 >> 0; return x;
Unsigned Right Shift
let x = 65531 / 65536 * 13000 >>> 0; return x;
Modulo
let x = 65531 / 65536 * 13000 - 65531 / 65536 * 13000 % 1 return x;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Math.floor
Math.round
Math.trunc
parseInt
Double Negation
Bitwise XOR
Bitwise OR
Right Shift
Unsigned Right Shift
Modulo

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Mobile Safari/537.36

Browser/OS: Chrome Mobile 137 on Android

View result in a separate tab

Bitwise XOR

636.8M/s

Right Shift

589.2M/s

Modulo

543.7M/s

Unsigned Right Shift

543.3M/s

Bitwise OR

540.3M/s

Double Negation

445.9M/s

Math.floor

224.1M/s

Math.trunc

223.7M/s

Math.round

210.1M/s

parseInt

12.5M/s

View exact numbers

Test name	Executions per second
✓ Bitwise XOR	636,819,840 Ops/sec
Right Shift	589,226,752 Ops/sec
Modulo	543,684,096 Ops/sec
Unsigned Right Shift	543,267,584 Ops/sec
Bitwise OR	540,315,584 Ops/sec
Double Negation	445,907,904 Ops/sec
Math.floor	224,113,856 Ops/sec
Math.trunc	223,717,920 Ops/sec
Math.round	210,108,224 Ops/sec
parseInt	12,499,502 Ops/sec

Various Ways to cast float to Integer (version: 1)

compare various ways to truncate the

Comparing performance of: `Math.floor vs Math.round vs Math.trunc vs parseInt vs Double Negation vs Bitwise XOR vs Bitwise OR vs Right Shift vs Unsigned Right Shift vs Modulo`

Created: one year ago by: Guest

Go to the latest result

Math.floor

Math.round

Math.trunc

parseInt

Double Negation

Bitwise XOR

Bitwise OR

Right Shift

Unsigned Right Shift

Modulo

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Various Ways to cast float to Integer (version: 1)

compare various ways to truncate the

Comparing performance of: Math.floor vs Math.round vs Math.trunc vs parseInt vs Double Negation vs Bitwise XOR vs Bitwise OR vs Right Shift vs Unsigned Right Shift vs Modulo

Created: one year ago by: Guest

Go to the latest result

Math.floor

Math.round

Math.trunc

parseInt

Double Negation

Bitwise XOR

Bitwise OR

Right Shift

Unsigned Right Shift

Modulo

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `Math.floor vs Math.round vs Math.trunc vs parseInt vs Double Negation vs Bitwise XOR vs Bitwise OR vs Right Shift vs Unsigned Right Shift vs Modulo`