hoisting loops

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Testing in
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regular
for (i=0;i<1000;i++){
  var mike = [1,2,3,4];
  var sam = [1,2,3,4];
  var jake = [1,2,3,4];
  var bill = [1,2,3,4];
}
ready
pre-declare
var mike, sam, jake, bill;
for (i=0;i<1000;i++){
  mike = [1,2,3,4];
  sam = [1,2,3,4];
  jake = [1,2,3,4];
  bill = [1,2,3,4];
}
ready

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