Benchmark: Map values to array

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

const DATA = new Map();

for (let i = 0; i < 100_000; ++i)
  DATA.set(i * Math.random(), Math.random() * 1000);

Tests:

MapIterator
DATA.values().toArray()
Spread syntax
[...DATA.values()]
for-of entries()
let arr = []; for (const v of DATA) arr.push(v[1]); arr
for-of values()
let arr = []; for (const v of DATA.values()) arr.push(v); arr
for-of values(), preallocated holey Array
let arr = new Array(100_000); for (const v of DATA.values()) arr.push(v); arr

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
MapIterator
Spread syntax
for-of entries()
for-of values()
for-of values(), preallocated holey Array

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 8 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36

Browser/OS: Chrome 142 on Mac OS X 10.15.7

View result in a separate tab

Spread syntax

6K/s

for-of values()

2K/s

for-of entries()

2K/s

MapIterator

1K/s

for-of values(), preallocated holey Array

230/s

View exact numbers

Test name	Executions per second
✓ Spread syntax	6,165 Ops/sec
for-of values()	2,113 Ops/sec
for-of entries()	1,780 Ops/sec
MapIterator	1,025 Ops/sec
for-of values(), preallocated holey Array	230 Ops/sec

Map values to array (version: 1)

Comparing performance of: `MapIterator vs Spread syntax vs for-of entries() vs for-of values() vs for-of values(), preallocated holey Array`

Created: 8 months ago by: Guest

Go to the latest result

MapIterator

Spread syntax

for-of entries()

for-of values()

for-of values(), preallocated holey Array

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Map values to array (version: 1)

Comparing performance of: MapIterator vs Spread syntax vs for-of entries() vs for-of values() vs for-of values(), preallocated holey Array

Created: 8 months ago by: Guest

Go to the latest result

MapIterator

Spread syntax

for-of entries()

for-of values()

for-of values(), preallocated holey Array

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `MapIterator vs Spread syntax vs for-of entries() vs for-of values() vs for-of values(), preallocated holey Array`