About while statements [closed]

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I have a question. I need to create a script section with a while statement that prints all even numbers between 1 and 100 to the screen. I am most likely doing it wrong this is what I have

   <script type="text/javascript">
    Var count= 2;
    while (count<=100) {
document.write (count +"<br />");
++count;
    }
   document.write("<p>You have printed 100 numbers.</p>");
    </script>

I am trying to find something that could explain this better I also don开发者_C百科t know if I am suppose to use the do while either.

---

all even numbers from 1 to 100 is

var count= 2; //var lowercase!
while (count<=100) {
    document.write (count +"<br />");
    count+=2;
}

---

Maybe it will be more clear using the 'for' loop:

for(var count = 2; count <= 100; count += 2) {
    document.write (count +"<br />");
}

---

An alternative approach is as follows:

<script type="text/javascript">
  for (var i = 2; i <= 100; i += 2) { // edit: was i + 2
    document.write(i + '<br />');
  }
</script>