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Run results for:
Array.from() vs new Array()
Testing the difference between creating filled arrays.
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Run details:
User agent:
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:126.0) Gecko/20100101 Firefox/126.0
Browser:
Firefox 126
Operating system:
Ubuntu
Device Platform:
Desktop
Date tested:
2 years ago
new Array()
810K/s
Array.from()
372K/s
View exact numbers
Test name
Executions per second
✓
new Array()
810,065 Ops/sec
Array.from()
372,407 Ops/sec
Tests:
new Array()
new Array(500).fill(0, 0, 500)
Array.from()
Array.from({ length: 500 }, () => 0)