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Performance Test: hex substring vs substr vs slice
(version: 0)
Comparing performance of:
slice vs substring vs substr
Created:
4 years ago
by:
Guest
Jump to the latest result
Script Preparation code:
var str = "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Tests:
slice
const buf = new Uint8Array((str.length - 1) >> 1) let i for (i = str.length - 2; i > 1; i -= 2) { buf[Math.ceil(i / 2) - 1] = parseInt(str.slice(i, i + 2), 16) } if (i === 1) buf[0] = parseInt(str[2], 16) return buf
substring
const buf = new Uint8Array((str.length - 1) >> 1) let i for (i = str.length - 2; i > 1; i -= 2) { buf[Math.ceil(i / 2) - 1] = parseInt(str.substring(i, i + 2), 16) } if (i === 1) buf[0] = parseInt(str[2], 16) return buf
substr
const buf = new Uint8Array((str.length - 1) >> 1) let i for (i = str.length - 2; i > 1; i -= 2) { buf[Math.ceil(i / 2) - 1] = parseInt(str.substr(i, 2), 16) } if (i === 1) buf[0] = parseInt(str[2], 16) return buf
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
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Test case name
Result
slice
substring
substr
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
6 months ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36
Browser/OS:
Chrome 124 on Windows
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=619308" width="100%" height="500px"></iframe>
Test name
Executions per second
slice
1817.5 Ops/sec
substring
1782.4 Ops/sec
substr
1765.8 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
I'll provide an answer. Based on the provided benchmark results, I can see that the three test cases ("slice", "substring", and "substr") are being executed at different execution rates on the same device (Tablet) running Chrome 92: * "substr" is executed at a rate of 10.070869445800781 executions per second. * "slice" is executed at a rate of 10.45016098022461 executions per second. * "substring" is executed at a rate of 10.9104585647583 executions per second. It appears that the test case "substr" has the lowest execution rate, followed by "slice", and then "substring". However, without more context or information about what these tests are measuring, it's difficult to determine which one is actually the most efficient or performs better in terms of actual application performance.
Related benchmarks:
Performance Test: substring vs substr vs slice: 3 shuffled
Performance Test: substring vs subsstr vs slice
slice vs substring remove last char
Performance Test: substring vs substr vs slice constant length
slice vs substr vs substring 122459
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