Benchmark: spread vs iterator for getting first element (fixed2)

HTML Preparation code:

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

Script Preparation code:

const elements = new Set(Array.from({length:10000},(_, i) => i));

Tests:

spread
const v = [...elements][0];
iterator
function first(iter){ for(const v of iter) return v; return undefined; } const v = first(elements);
destructuring
const [v] = elements;
iterator helpers
const [v] = elements.values().take(1).toArray()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
spread
iterator
destructuring
iterator helpers

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:141.0) Gecko/20100101 Firefox/141.0

Browser/OS: Firefox 141 on Windows

View result in a separate tab

iterator

34.9M/s

destructuring

33.3M/s

iterator helpers

5.9M/s

spread

13K/s

View exact numbers

Test name	Executions per second
✓ iterator	34,930,480 Ops/sec
destructuring	33,274,310 Ops/sec
iterator helpers	5,860,283 Ops/sec
spread	12,558 Ops/sec

spread vs iterator for getting first element (fixed2) (version: 1)

fixed elements array creation

Comparing performance of: `spread vs iterator vs destructuring vs iterator helpers`

Created: one year ago by: Guest

Go to the latest result

spread

iterator

destructuring

iterator helpers

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

spread vs iterator for getting first element (fixed2) (version: 1)

fixed elements array creation

Comparing performance of: spread vs iterator vs destructuring vs iterator helpers

Created: one year ago by: Guest

Go to the latest result

spread

iterator

destructuring

iterator helpers

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `spread vs iterator vs destructuring vs iterator helpers`