pre-allocated arrays

JavaScript performance comparison

Revision 6 of this test case created

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Test Ops/sec
empty literal
var arr = [];
for (var i = 0; i < 100000; i++) {
    arr[i] = i;
}
pending…
pre-allocated array (sparse)
var arr = new Array(100000);
for (var i = 0; i < 100000; i++) {
    arr[i] = i;
}
pending…
pre-allocated array (dense)
var arr = Array.apply(null, new Array(100000));
for (var i = 0; i < 100000; i++) {
    arr[i] = i;
}
pending…

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