pre-allocated arrays

JavaScript performance comparison

Revision 68 of this test case created by Vasya

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
empty literal
var arr = [];
for (var i = 0; i < 1000000; i++) {
    arr.push(i);
}
pending…
pre-allocated array
var arr = new Array(1000000);
for (var i = 0; i < 1000000; i++) {
    arr[i] = i;
}
pending…
empty literal v2
var arr = [];
for (var i = 0; i < 1000000; i++) {
    arr[arr.length]=i;
}
pending…
pre-allocated through length
var arr = [];
arr.length=1000000;
for (var i = 0; i < 1000000; i++) {
    arr[0]=i;
}
pending…

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