Run results for: Array Initialization: for, for push, fill map

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36 OPR/109.0.0.0 (Edition Yx GX 03)

Browser: Opera 109

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

Fill Map

1K/s

for i

184/s

for push

170/s

View exact numbers

Test name	Executions per second
✓ Fill Map	1,428 Ops/sec
for i	184 Ops/sec
for push	170 Ops/sec

Script Preparation code:

var times = 65535;

function initializer(val, z) {
    const i = z % 5 | 0;
    return 0 == (z % 3 | 0) ? 0 === i ? "fizzbuzz" : "fizz" : 0 === i ? "buzz" : z;
}

Tests:

for i
var b = new Array(times); for (var i = 0; i < times; i++) { b[i] = initializer(b[i], i) } b
for push
var c = []; for (var i = 0; i < times; i++) { c.push(initializer(c[i], i)) } c
Fill Map
new Array(times).fill().map(initializer)