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javascript loops with reduce 5
(version: 0)
Comparing performance of:
foreach vs for-in vs for-of vs for vs optimized-for vs reduce
Created:
one year ago
by:
Guest
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Tests:
foreach
const items = Array.from({length: 100000}, () => Math.floor(Math.random() * 40)); let index = 0; items.forEach(i => index++);
for-in
const items = Array.from({length: 100000}, () => Math.floor(Math.random() * 40)); let index = 0; const newArray = []; for (let i in items) { newArray.push(i); }
for-of
const items = Array.from({length: 100000}, () => Math.floor(Math.random() * 40)); let index = 0; const newArray = []; for (let i of items) { newArray.push(i); }
for
const items = Array.from({length: 100000}, () => Math.floor(Math.random() * 40)); let index = 0; const newArray = []; for(let i = 0; i < items.length; ++i) { newArray.push(items[i]); }
optimized-for
const items = Array.from({length: 100000}, () => Math.floor(Math.random() * 40)); let index = 0; const newArray = []; for(let i = items.length; i > 0; --i) { newArray.push(items[i]); }
reduce
const items = Array.from({length: 100000}, () => Math.floor(Math.random() * 40)); items.reduce((acc,value) => { acc.push(value); return acc; }, new Array());
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (6)
Previous results
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Test case name
Result
foreach
for-in
for-of
for
optimized-for
reduce
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/128.0.0.0 Safari/537.36
Browser/OS:
Chrome 128 on Windows
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Test name
Executions per second
foreach
55.3 Ops/sec
for-in
48.2 Ops/sec
for-of
61.0 Ops/sec
for
55.9 Ops/sec
optimized-for
55.3 Ops/sec
reduce
54.5 Ops/sec
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Javascript: reduce VS for (modified)
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for vs reduce freddiekun version 420
Reduce vs For loop 939424
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