# if proc

Source: https://ref.dm-lang.org/proc/if

### Format
- `if( E ) Statement1`
- `else if( E2 ) Statement2`
- `else Statement3`


If the expression E is true (non-zero) then execute Statement1. Otherwise, test E2, etc. Finally, if none of the expressions are true, execute Statement3. The else nodes are all optional.

Statement1, Statement2, and Statement3 may be a single statement or a code block with optional braces: {}.

```dm /if/
if(T==1) world << "TRUE"
else world << "FALSE"
```

This will display "TRUE" if T has value 1, and "FALSE" otherwise.

### See also
> [goto proc](https://ref.dm-lang.org/proc/goto.md)