Benchmark: reduce spread vs reduce

Script Preparation code:

var array = [{items: ['banana', 'jesus', 1212312, 2, 4, 'б', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'sausage', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg']},
             {items: ['banana', 'jesus', 1212312, 2, 4, 'б', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'sausage', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg']},
             {items: ['banana', 'jesus', 1212312, 2, 4, 'б', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'sausage', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg', '112312312', 'dsdsdsds', 'sdsdsdsd', 'ergergergerg']}]

Tests:

reduce spread
array.reduce((acc, {items}) => { return [...acc, ...items.map((item) => item)]; }, []);
reduce 1
array.reduce((acc, {items}) => { const preparedItems = items.map((item) => { return {item}; }) acc.push(...preparedItems); return acc; }, []);
reduce without const
array.reduce((acc, {items}) => { acc.push(...items.map((item) => { return {item}; })); return acc; }, []);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
reduce spread
reduce 1
reduce without const

Fastest: N/A

Slowest: N/A

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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/102.0.0.0 Safari/537.36

Browser/OS: Chrome 102 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
reduce spread	616725.6 Ops/sec
reduce 1	815794.9 Ops/sec
reduce without const	829360.9 Ops/sec

reduce spread vs reduce (version: 0)

Comparing performance of: reduce spread vs reduce 1 vs reduce without const

Created: 2 years ago by: Guest

Jump to the latest result

reduce spread

reduce 1

reduce without const

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A