Control Flow

Conditionals — viss / elles

viss (condition) gjer {
  // consequence
}

The condition must be wrapped in parentheses. The block is introduced with gjer.

else

viss (temperature erMindreEnn 0) gjer {
  terminal.skriv("Frost!")
} elles {
  terminal.skriv("Ikkje frost")
}

else-if

Chain as many elles viss clauses as needed:

viss (score erStørreEnn 89) gjer {
  terminal.skriv("A")
} elles viss (score erStørreEnn 74) gjer {
  terminal.skriv("B")
} elles viss (score erStørreEnn 59) gjer {
  terminal.skriv("C")
} elles {
  terminal.skriv("F")
}

While loop — medan

open i er 0
medan (i erMindreEnn 5) gjer {
  terminal.skriv(i)
  i er i + 1
}

The condition is re-evaluated before each iteration. The body executes as long as the condition is truthy.

For-each loop — forKvart / i

Iterate over a list:

låst names er ["Astrid", "Bjørn", "Cecilie"]

forKvart name i names {
  terminal.skriv("God dag, " + name)
}

The loop variable (name above) is bound to each element in turn. There is no built-in index variable; if you need the index, use liste.reduser or a medan loop with a counter.

Break and continue — bryt / fortset

Use bryt to exit a loop immediately and fortset to skip the rest of the current iteration:

open teller er 0
medan (teller erMindreEnn 10) gjer {
  viss (teller erSameSom 5) gjer {
    bryt
  }
  terminal.skriv(teller)
  teller += 1
}
// prints 0 1 2 3 4

forKvart tal i [1, 2, 3, 4, 5] {
  viss (tal erSameSom 3) gjer {
    fortset
  }
  terminal.skriv(tal)
}
// prints 1 2 4 5

Both keywords work in both medan and forKvart loops. They cannot escape function boundaries — bryt inside a function called from a loop does not break the outer loop.

Comments

Line comments start with //. Block comments use /* ... */ and can span multiple lines:

// This is a line comment

/* This is a
   block comment */

Comparison operators

Operator	Meaning
erSameSom	Equal to
erStørreEnn	Greater than
erMindreEnn	Less than
erSameEllerStørreEnn	Greater than or equal
erSameEllerMindreEnn	Less than or equal

terminal.skriv(10 erStørreEnn 5)            // sant
terminal.skriv(3 erSameEllerMindreEnn 3)    // sant
terminal.skriv("abc" erSameSom "abc")       // sant

Logical operators

viss (age erStørreEnn 17 og hasTicket) gjer {
  terminal.skriv("Velkomen!")
}

viss (isAdmin eller hasPermission) gjer {
  terminal.skriv("Tilgang gitt")
}

viss (ikkje isLoggedIn) gjer {
  terminal.skriv("Logg inn fyrst")
}