var ret = []

for (var i = 0; i < 5; ++i) {
  ret.push_back(i);
}

assert_equal([0,1,2,3,4], ret);


var j = 0;

for (;j<10; ++j)
{
}

assert_equal(10, j);


var k = 0;

for (;k<10; )
{
  ++k;
}

assert_equal(10, k);


for (;;)
{
  break;
}

var l = 0;

for (;;l = 1)
{
  break;
}

assert_equal(0, l)

def isTrue(x)
{
  if (x == 5) 
  {
    return true
  } else {
    return false
  }
}

for (var m = 0; isTrue(m); m = m + 1)
{
  
}

assert_equal(5, m);