restructuring to separate language from API
This commit is contained in:
32
docs/blocks/loops/while.md
Normal file
32
docs/blocks/loops/while.md
Normal file
@ -0,0 +1,32 @@
|
||||
# While
|
||||
|
||||
### @parent blocks/language
|
||||
|
||||
|
||||
Repeat code while a [Boolean](/reference/types/boolean) `condition` is true.
|
||||
|
||||
```blocks
|
||||
while(true) {
|
||||
}
|
||||
```
|
||||
|
||||
The while loop has a *condition* that evaluates to a [Boolean](/reference/types/boolean) value. After the `do` keyword, add the code that you want to run while the `condition` is `true`. The while loop concludes with `end while`.
|
||||
|
||||
The condition is tested before any code runs. Which means that if the condition is false, the code inside the loop doesn't execute.
|
||||
|
||||
### Example: diagonal line
|
||||
|
||||
The following example uses a while loop to make a diagonal line on the LED screen (points `0, 0`, `1, 1`, `2, 2`, `3, 3`, `4, 4`).
|
||||
|
||||
```blocks
|
||||
let index = 4;
|
||||
while(index >= 0) {
|
||||
led.plot(index, index);
|
||||
index--;
|
||||
}
|
||||
```
|
||||
|
||||
### See also
|
||||
|
||||
[on button pressed](/reference/input/on-button-pressed), [for](/blocks/loops/for), [if](/blocks/logic/if), [forever](/reference/basic/forever)
|
||||
|
Reference in New Issue
Block a user