Array copy

Benchmark created on

Preparation HTML

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

Setup

function copy( a ){
    return a.slice()
    }
    
    var array = [ 1, 2, 3, 4, 5, 6, 7, 8, 9 ];

Test runner

Ready to run.

Testing in
TestOps/sec
slice()
var temp = array.slice();
ready
concat()
var temp = [].concat(array);
ready
loop
var temp = [];
for ( var i in array ) {
    temp[i] = array[i];
}
ready
slice() own func
var temp = copy( array );
ready

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.