06-Control-Flow.md

Control Flow

If / Else If / Else

Use is it for if, or is it for else if, and abuden for else. Conditions must be wrapped in parentheses.

Basic if

is it (umur >= 18) {
    eh "Adult already lah";
}

If / else

is it (score >= 50) {
    eh "Pass!";
} abuden {
    eh "Fail lah";
}

If / else if / else

is it (umur >= 18) {
    eh "Adult";
} or is it (umur >= 13) {
    eh "Teenager";
} abuden {
    eh "Still small kid";
}

You can chain as many or is it blocks as you need:

dei grade = 85;

is it (grade >= 90) {
    eh "A";
} or is it (grade >= 80) {
    eh "B";
} or is it (grade >= 70) {
    eh "C";
} or is it (grade >= 60) {
    eh "D";
} abuden {
    eh "F";
}

Scoping

Each block ({ }) creates a new scope. Variables declared inside a block are not visible outside:

dei x = "outer";
is it (can) {
    dei x = "inner";
    eh x;    // "inner"
}
eh x;    // "outer"

Next steps

• Loops — while, range, and foreach loops