Array fiddling (again)

JavaScript performance comparison

Test case created by Ben Lesh

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Testing in unknown unknown
Test Ops/sec
Build array with push
var arr = [];

for (var i = 0; i < 1000; i++) {
  arr.push(i);
}
pending…
Build array with length specified first
var arr = [];
arr.length = 1000;
for (var i = 0; i < 1000; i++) {
  arr.push(i);
}
pending…

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