Benchmark: Truncation Methods 5

Script Preparation code:

"use strict";
const arr = Array.from({length: 10000}, (function(){return Math.random()*1000}));

Tests:

~~num
"use strict"; let x = 0; for (let i=0; i<10000; i++) { x = ~~(arr[i]); }
num | 0
"use strict"; let x = 0; for (let i=0; i<10000; i++) { x = (arr[i]) | 0; }
num << 0
"use strict"; let x = 0; for (let i=0; i<10000; i++) { x = (arr[i]) << 0; }
num >> 0
"use strict"; let x = 0; for (let i=0; i<10000; i++) { x = (arr[i]) >> 0; }
num >>> 0
"use strict"; let x = 0; for (let i=0; i<10000; i++) { x = (arr[i]) >>> 0; }
Math.imul(num, 1)
"use strict"; let x = 0; for (let i=0; i<10000; i++) { x = Math.imul(arr[i], 1); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
~~num
num \| 0
num << 0
num >> 0
num >>> 0
Math.imul(num, 1)

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.5 Safari/605.1.15

Browser/OS: Safari 26 on Mac OS X 10.15.7

View result in a separate tab

num >> 0

293K/s

num >>> 0

293K/s

~~num

224K/s

num << 0

210K/s

Math.imul(num, 1)

195K/s

num | 0

149K/s

View exact numbers

Test name	Executions per second
✓ num >> 0	293,139 Ops/sec
num >>> 0	293,020 Ops/sec
~~num	224,265 Ops/sec
num << 0	210,093 Ops/sec
Math.imul(num, 1)	194,530 Ops/sec
num \| 0	149,437 Ops/sec

Truncation Methods 5 (version: 1)

Comparing performance of: `~~num vs num | 0 vs num << 0 vs num >> 0 vs num >>> 0 vs Math.imul(num, 1)`

Created: 2 months ago by: Guest

Go to the latest result

~~num

num | 0

num << 0

num >> 0

num >>> 0

Math.imul(num, 1)

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Truncation Methods 5 (version: 1)

Comparing performance of: ~~num vs num | 0 vs num << 0 vs num >> 0 vs num >>> 0 vs Math.imul(num, 1)

Created: 2 months ago by: Guest

Go to the latest result

~~num

num | 0

num << 0

num >> 0

num >>> 0

Math.imul(num, 1)

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `~~num vs num | 0 vs num << 0 vs num >> 0 vs num >>> 0 vs Math.imul(num, 1)`