The WHILE Loop:
- A WHILE loop executes as long as a given test condition is true.
```
WHILE <test condition>
  ...
ENDWHILE
```
  For example:
```
res index 1
res count 10
WHILE index LT count
  say "index is ^index"
  calc index index+1
ENDWHILE
```
- The test condition in WHILE allows the same tests that are used in IF
- See the WHILE explain file for more details.