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variety of loops in js
(version: 0)
Comparing performance of:
foreach vs for++ vs map vs for of vs for in
Created:
7 years ago
by:
Guest
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Script Preparation code:
var arr = []; for (var i = 0; i < 1000; i++) { arr[i] = i; } function someFn(i) { return i * 3 * 8; }
Tests:
foreach
arr.forEach(function (item){ someFn(item); })
for++
for (var i = 0, len = arr.length; i < len; i++) { someFn(arr[i]); }
map
arr.map(item => someFn(item))
for of
for (var value of arr) { someFn(value); }
for in
for (var i in arr) { someFn(arr[i]); }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (5)
Previous results
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Test case name
Result
foreach
for++
map
for of
for in
Fastest:
N/A
Slowest:
N/A
Latest run results:
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