Benchmark: Array Initialization: for, for push, fill map

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)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
for i
for push
Fill Map

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 28 days ago)

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:123.0) Gecko/20100101 Firefox/123.0

Browser/OS: Firefox 123 on Linux

View result in a separate tab

Test name	Executions per second
for i	732.4 Ops/sec
for push	712.4 Ops/sec
Fill Map	566.9 Ops/sec

Array Initialization: for, for push, fill map (version: 0)

Comparing performance of: for i vs for push vs Fill Map

Created: one year ago by: Guest

Jump to the latest result

for i

for push

Fill Map

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A