Run results for: Array concat vs spread vs unshift

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:89.0) Gecko/20100101 Firefox/89.0

Browser: Firefox 89

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 3 years ago

Tests:

var params = [ "hello", true, 7 ];
var other = [ 1, 2 ].concat(params);

AخA
 
var params = [ "hello", true, 7 ];var other = [ 1, 2 ].concat(params);

var params = [ "hello", true, 7 ]
var other = [ 1, 2, ...params ]

 
var params = [ "hello", true, 7 ]var other = [ 1, 2, ...params ]

Unshift each
var params = [ "hello", true, 7 ]; params.unshift(2); params.unshift(1);
var params = [ "hello", true, 7 ];
params.unshift(2);
params.unshift(1);
Unshift together
var params = [ "hello", true, 7 ]; params.unshift(1, 2);
var params = [ "hello", true, 7 ];
params.unshift(1, 2);