js2coffee for loop vs vanilla

JavaScript performance comparison

Revision 2 of this test case created

Info

js2coffee seems to turn normal for loops into while loops, which is something you need to watch out for. Here's a comparison between 3 different coffeescript loop methods.

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Test Ops/sec
Vanilla JS for loop
for (var i = 0; i < 10; i++) {}
pending…
Above code translated with js2coffee and back
var i = 0;

while (i < 10) {
  i++;
}

/*
  i = 0
 
  while i < 10
      i++
*/
pending…
for i in [1..10]
var n, _i;

for (n = _i = 1; _i <= 10; n = ++_i) {}

/*
  for i in [1..10]
      ;
*/
pending…

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