Benchmark: how to get last array element

HTML Preparation code:

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Script Preparation code:

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async function globalMeasureThatScriptPrepareFunction() {
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Tests:

slice and index
var array = [0,1,2,3,4,5,6,7,8,9,10]; var result = array.slice(-1)[0];
spread and pop
var array = [0,1,2,3,4,5,6,7,8,9,10]; var result = [...array].pop();
get by length
var array = [0,1,2,3,4,5,6,7,8,9,10]; var result = array[array.length - 1];

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
slice and index
spread and pop
get by length

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Whale/4.30.291.11 Safari/537.36

Browser/OS: Chrome 132 on Mac OS X 10.15.7

View result in a separate tab

get by length

251.7M/s

spread and pop

68.8M/s

slice and index

68.4M/s

View exact numbers

Test name	Executions per second
✓ get by length	251,725,984 Ops/sec
spread and pop	68,780,424 Ops/sec
slice and index	68,380,208 Ops/sec

how to get last array element (version: 1)

Comparing performance of: `slice and index vs spread and pop vs get by length`

Created: one year ago by: Guest

Go to the latest result

slice and index

spread and pop

get by length

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

how to get last array element (version: 1)

Comparing performance of: slice and index vs spread and pop vs get by length

Created: one year ago by: Guest

Go to the latest result

slice and index

spread and pop

get by length

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `slice and index vs spread and pop vs get by length`