Run results for: how to get last array element

Run details:

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: Chrome 132

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

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

HTML Preparation code:

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

Script Preparation code:

/*your preparation JavaScript code goes here
To execute async code during the script preparation, wrap it as function globalMeasureThatScriptPrepareFunction, example:*/
async function globalMeasureThatScriptPrepareFunction() {
    // This function is optional, feel free to remove it.
    // await someThing();
}

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];