Benchmark: fill array with value: map(callback) vs fill(value)

Script Preparation code:

var array1000 = (new Array(1000)).map((e, i) => ({a: i, b: i, c: i, d: i, e: i, f: i, g: i, test: 'object'+ i}));
var array10000 = (new Array(10000)).map((e, i) => ({a: i, b: i, c: i, d: i, e: i, f: i, g: i, test: 'object'+ i}));
var array100000 = (new Array(100000)).map((e, i) => ({a: i, b: i, c: i, d: i, e: i, f: i, g: i, test: 'object'+ i}));

Tests:

.map(callback) - 1 000 elements
const result = array1000.map(() => true);
.fill(value) - 1 000 elements
const result = new Array(array1000.length).fill(true);
.map(callback) - 10 000 elements
const result = array10000.map(() => true);
.fill(value) - 10 000 elements
const result = new Array(array10000.length).fill(true);
.map(callback) - 100 000 elements
const result = array100000.map(() => true);
.fill(value) - 100 000 elements
const result = new Array(array100000.length).fill(true);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
.map(callback) - 1 000 elements
.fill(value) - 1 000 elements
.map(callback) - 10 000 elements
.fill(value) - 10 000 elements
.map(callback) - 100 000 elements
.fill(value) - 100 000 elements

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 13 days ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 Edg/124.0.0.0

Browser/OS: Chrome 124 on Windows

View result in a separate tab

Test name	Executions per second
.map(callback) - 1 000 elements	866734.9 Ops/sec
.fill(value) - 1 000 elements	806457.4 Ops/sec
.map(callback) - 10 000 elements	81425.1 Ops/sec
.fill(value) - 10 000 elements	81711.9 Ops/sec
.map(callback) - 100 000 elements	3553.9 Ops/sec
.fill(value) - 100 000 elements	3986.3 Ops/sec

fill array with value: map(callback) vs fill(value) (version: 4)

Comparing performance of: .map(callback) - 1 000 elements vs .fill(value) - 1 000 elements vs .map(callback) - 10 000 elements vs .fill(value) - 10 000 elements vs .map(callback) - 100 000 elements vs .fill(value) - 100 000 elements

Created: 3 years ago by: Registered User

Jump to the latest result

.map(callback) - 1 000 elements

.fill(value) - 1 000 elements

.map(callback) - 10 000 elements

.fill(value) - 10 000 elements

.map(callback) - 100 000 elements

.fill(value) - 100 000 elements

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A