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js array spread op with map vs array.from
(version: 1)
Comparing performance of:
Spread op with map vs Array from
Created:
one year ago
by:
Guest
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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:
Spread op with map
const values = [...Array(10000000)].map(() => [Math.random(), 0])
Array from
const values = Array.from({ length: 10000000 }, () => [Math.random(), 0])
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
Spread op with map
Array from
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36
Browser/OS:
Chrome 136 on Mac OS X 10.15.7
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Test name
Executions per second
Spread op with map
7.2 Ops/sec
Array from
3.5 Ops/sec
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