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/86.0.4240.198 Safari/537.36 OPR/72.0.3815.400

Browser: Opera 72

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
for i	85.6 Ops/sec
for push	76.5 Ops/sec
Fill Map	747.1 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)

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

for i

for push

Fill Map