Create an array of initial size (v9)

Revision 9 of this benchmark created by RaananW on

Setup

var arr, size = 1e5,
      undef;

Test runner

Ready to run.

Testing in
TestOps/sec
Array constructor
arr = new Array(size);
ready
for loop + push
arr = [];
for (var i = 0; i < size; ++i) {
  arr[i] = undef;
}
ready
while loop, forwards
var i = 0;
arr = [];
while (i++ < size) {
  arr[i] = undef;
}
ready
while loop, backwards
var i = size;
arr = [];
while (i-- > 0) {
  arr[i] = undef;
}
ready
sparse array
arr = [];
arr[size - 1] = undef;
ready
length
arr = [];
arr.length = size;
ready
sparse new Array
arr = new Array();
arr[size - 1] = undef;
ready

Revisions

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