Run results for: list push vs splice

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.3.1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 17

Operating system: iOS 17.3.1

Device Platform: Mobile

Date tested: 10 months ago

Test name	Executions per second
append	3495850.8 Ops/sec
splice	3065083.2 Ops/sec
reverse	2271363.2 Ops/sec
concat	1448345.1 Ops/sec
unshift	2966718.8 Ops/sec

Script Preparation code:

l = 123;

Tests:

append
a = Array(l); a.push(3);
splice
a = Array(l); a.splice(0,0,3);
reverse
a = Array(l); a.reverse().push(3); a.reverse();
concat
a = Array(l); a = [3].concat(a);
unshift
a = Array(l); a.unshift(3);

Run results for: list push vs splice

append

splice

reverse

concat

unshift