Run results for: Javascript Concat vs Spread vs Push

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:102.0) Gecko/20100101 Firefox/102.0

Browser: Firefox 102

Operating system: Ubuntu

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Concat	5290.4 Ops/sec
Spread	4624.0 Ops/sec
Push	44961830.0 Ops/sec

Script Preparation code:

function getParams() {
    return Array(10000).fill().map(() => {
        return Math.floor(Math.random() * 1000) + 1;
    });
}
var params = getParams();

Tests:

Concat
var concat = [ 1, 2 ].concat(params);
Spread
var spread = [ 1, 2, ...params ];
Push
var push = [ "hello", true, 7 ]; push.push(params);

Run results for: Javascript Concat vs Spread vs Push

Compare concat/spread/push

Concat

Spread

Push