2.5 Conditionals

>>>

if (true)
    print('yes');

The basic conditional if statement.

>>>

if (1 == 0) {
    print('yes');
} else {
    print('no');
}

The if...else conditional statement, also using blocks.

>>>

false ? 1 : 0

The cond ? then : else conditional operator is sometimes a compact alternative to the if...else statement. Note that due to operator precedence (associativity), the condition or the whole expression must often be parenthesized.

>>>

switch ('two') {
case 'one':
    print('1');
    break;
case 'two':
    print('2');
    break;
default:
    print('other');
}

The switch statement is sometimes used instead of long if-else constructs for clarity.

>>>

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