Array push() vs unshift() (v31)

Revision 31 of this benchmark created by David on

Description

Tests the performance difference of using two different ways of filling arrays at the start. The two TCs produce the same result.

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Testing in
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push
var a = [];
a.push(1);
a.push(2);
a.push(3);
a.push(4);
a.push(5);
a.push(6);
a.push(7);
a.push(8);
a.push(9);
a.push(10);
ready
unshift
var a = [];
a.unshift(10);
a.unshift(9);
a.unshift(8);
a.unshift(7);
a.unshift(6);
a.unshift(5);
a.unshift(4);
a.unshift(3);
a.unshift(2);
a.unshift(1);
ready
push once
var a = [];
a.push(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
 
ready
unshift once
var a = [];
a.unshift(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
 
ready

Revisions

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