Run results for: pop vs index for array

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36

Browser: Chrome 125

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

pop check

24.2M/s

last-index check

15.5M/s

View exact numbers

Test name	Executions per second
✓ pop check	24,228,668 Ops/sec
last-index check	15,539,749 Ops/sec

Script Preparation code:


function popLast() {
  var arr = [0,1,2,3,4,5,6,7,8,9];
  const element = arr.pop();
  return element;
}

function indexLast() {
  var arr = [0,1,2,3,4,5,6,7,8,9];
  const element = arr[arr.lenght - 1];
  return element;
}

Tests:

pop check
popLast();
last-index check
indexLast();

Run results for: pop vs index for array

Comparing pop method vs last index check for an array element

pop check

last-index check