Run results for: truncating array: slice vs splice

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.84 Safari/537.36

Browser: Chrome 99

Operating system: Linux

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
slice	5113900.0 Ops/sec
splice	7220007.5 Ops/sec

Script Preparation code:

var list = [];
for (var i = 0; i < 1000000; i++) {
  list.push ({ timestamp: Math.round (+new Date() / 1000) });
}

AخA
 
var list = [];for (var i = 0; i < 1000000; i++) {  list.push ({ timestamp: Math.round (+new Date() / 1000) });}

Tests: