If omitted, the condition always evaluates to true. Landhaus & Rustikal (75) Inhalt. Example: x = 0:5. Nested Loops Use some simple nested for loops to generate all possible coordinates from (0,0) up to (5,5). A for loop works by changing the value of an integer many times. If the change is only occationly , You could just refresh the length variable or else just live with a quite slow loop. The HTML