Benchmark: array speed 2 - MeasureThat.net

HTML Preparation code:

[...array].reverse()

Script Preparation code:

/*your preparation JavaScript code goes here
To execute async code during the script preparation, wrap it as function globalMeasureThatScriptPrepareFunction, example:*/
var array = {a:[0,1,2,3,4]}

Tests:

array[array.length - 1]
/*When writing async/deferred tests, use `deferred.resolve()` to mark test as done*/ array.a[array.a.length - 1]
array.slice(-1)[0]
array.a.slice(-1)[0]
[...array].reverse()
[...array.a].reverse()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
array[array.length - 1]
array.slice(-1)[0]
[...array].reverse()

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) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36

Browser/OS: Chrome 137 on Windows

View result in a separate tab

array[array.length - 1]

122.3M/s

array.slice(-1)[0]

42.7M/s

[...array].reverse()

35.1M/s

View exact numbers

Test name	Executions per second
✓ array[array.length - 1]	122,332,688 Ops/sec
array.slice(-1)[0]	42,704,656 Ops/sec
[...array].reverse()	35,111,464 Ops/sec

array speed 2 (version: 1)

Comparing performance of: `array[array.length - 1] vs array.slice(-1)[0] vs [...array].reverse()`

Created: one year ago by: Guest

Go to the latest result

array[array.length - 1]

array.slice(-1)[0]

[...array].reverse()

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

array speed 2 (version: 1)

Comparing performance of: array[array.length - 1] vs array.slice(-1)[0] vs [...array].reverse()

Created: one year ago by: Guest

Go to the latest result

array[array.length - 1]

array.slice(-1)[0]

[...array].reverse()

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `array[array.length - 1] vs array.slice(-1)[0] vs [...array].reverse()`