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Test join vs concat string
(version: 1)
Comparing performance of:
concat vs join vs concat 2x vs join 2x
Created:
one year ago
by:
Registered User
Go to the latest result
HTML Preparation code:
<!--your preparation HTML code goes here-->
Script Preparation code:
/*your preparation JavaScript code goes here To execute async code during the script preparation, wrap it as function globalMeasureThatScriptPrepareFunction, example:*/ async function globalMeasureThatScriptPrepareFunction() { // This function is optional, feel free to remove it. // await someThing(); }
Tests:
concat
const sep = ',' const q = 'a' + sep + 'b' + sep + 'c'
join
const arr = ['a', 'b', 'c'] const q2 = arr.join(',')
concat 2x
const sep = ',' const q = 'a' + sep + 'b' + sep + 'c' + 'a' + sep + 'b' + sep + 'c'
join 2x
const arr = ['a', 'b', 'c', 'a', 'b', 'c'] const q2 = arr.join(',')
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (4)
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Test case name
Result
concat
join
concat 2x
join 2x
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36
Browser/OS:
Chrome 134 on Windows
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=602353" width="100%" height="500px"></iframe>
concat
129.9M/s
concat 2x
125.1M/s
join
9.7M/s
join 2x
6.4M/s
View exact numbers
Test name
Executions per second
✓
concat
129,887,552 Ops/sec
concat 2x
125,135,880 Ops/sec
join
9,661,815 Ops/sec
join 2x
6,374,048 Ops/sec
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