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Run results for:
Array.from() vs new Array() vs push vs [i] pushup
Testing the difference between creating filled arrays.
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Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36
Browser:
Chrome 122
Operating system:
Windows
Device Platform:
Desktop
Date tested:
2 years ago
Benchmark engine:
Benchmark.js
new Array()
546K/s
push
455K/s
[i]
375K/s
Array.from()
29K/s
View exact numbers
Test name
Executions per second
✓
new Array()
546,070 Ops/sec
push
454,521 Ops/sec
[i]
374,832 Ops/sec
Array.from()
28,793 Ops/sec
Tests:
new Array()
new Array(500).fill("push-up", 0, 500)
Array.from()
Array.from({ length: 500 }, () => "push-up")
push
let array = []; for (let i = 0; i < 500; i++){ array.push("push-up") }
[i]
let array = []; for (let i = 0; i < 500; i++){ array[i] = "push-up" }