closure01.coffee

result = []
for i in [1..3]
    result.push -> i * i

for f in result
   console.log f()

closure01.js

var result = [];

for (var i = 1; i <= 3; ++i) {
  result.push(function() {
    return i * i;
  });
}

for (var j = 0; j < result.length; j++) {
  var f = result[j];
  console.log(f());
}