Run results for: arr unshift vs push + reverse (large array)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0

Browser: Firefox 112

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
unshift	3.4 Ops/sec
push + reverse	24.0 Ops/sec

Script Preparation code:

var arr = [];

AخA
 
var arr = [];

Tests:

for (let i = 0; i < 100000; i++){
  arr.unshift(i);
}

 
for (let i = 0; i < 100000; i++){  arr.unshift(i);}