Run results for: Slice vs For - 100 item

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:141.0) Gecko/20100101 Firefox/141.0

Browser: Firefox 141

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

push

112.1M/s

slice

70.3M/s

View exact numbers

Test name	Executions per second
✓ push	112,141,536 Ops/sec
slice	70,302,896 Ops/sec

Script Preparation code:

var data = [
    1, 2, 3, 4, 5, 6, 7, 8, 9, 0,
    10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
    20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
    30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
    40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
    50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
    60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
    70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
    80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
    90, 91, 92, 93, 94, 95, 96, 97, 98, 99
];

Tests:

slice
var copy = data.slice(0, 4);
push
var copy = []; for (var i = 0; i < 4; i++) { copy.push(data[i]) }