new-array-vs-push

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literal + push
var a = [];

for (var i = 0; i < 1000000; i++) {
  a.push(i);
}
ready
literal + index
var a = [];

for (var i = 0; i < 1000000; i++) {
  a[i] = i;
}
ready
new array + push
var a = new Array();

for (var i = 0; i < 1000000; i++) {
  a.push(i);
}
ready
new array + index
var a = new Array();

for (var i = 0; i < 1000000; i++) {
  a[i] = i;
}
ready
new array + fix size + index
var a = new Array(1000000);

for (var i = 0; i < 1000000; i++) {
  a[i] = i;
}
ready

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