Booleans and conditionals: Correct Solution


Part 1

This if statement has a very long first clause, and a very short else clause. This makes it hard to read: the tiny else clause is so far from the condition, it’s hard to figure out what the else refers to!

if (ner) {
    ...
    ...
    // Pretend there is lots of code here
    ...
    ...
} else {
    merte();
}

Improve readability by refactoring this conditional so that its two clauses are swapped: what is now the second clause (the else clause) comes first, and the first clause comes second.

Solution

if (!ner) {
    merte();
} else {
    ...
    ...
    // Pretend there is lots of code here
    ...
    ...
}

Things to double-check in your solution:


Part 2

Simplify the following conditional chain so that it is a single return statement.

if (eil) {
    return true;
}
if (stass()) {
    return true;
}
return false;

Solution

return stass() && eil;

Bonus challenge: rewrite the if/else chain above so that instead of consisting of many return true; statements with one return false; at the end, it has many return false; statements with one return true; at the end.

Solution

if (!stass()) {
    if (!eil) {
        return false;
    }
}
return true;

Part 3

Simplify the following messy chain of conditionals:

if (psic == true) {
    mosbor();
}
if (noch == 8 && psic != true) {
    horten();
}

Solution

{
    if (psic) {
        mosbor();
    }
    if (noch == 8) {
        horten();
    }
}

Things to double-check in your solution:


Related puzzles: