If
if will execute a block of instructions if a condition is true.
if (!= x 42) {
std.println "Wrong answer!";
};
A second block may be given to be executed if the condition is false.
if (== (% x 2) 0) {
std.println "x is even.";
} {
std.println "x is odd.";
};
More arguments may be provided as pairs of conditions and blocks of instructions, with an optional final block to be executed if no condition is met.
if (< x 0) {
std.println "x is negative.";
} (== x 0) {
std.println "x is zero.";
} {
std.println "x is positive.";
};