Language Tour

Types

Type	Notes
`Int`	64-bit integer — the universal numeric type
`Bool`	`true` / `false` literals; produced by `!`
`String`	`"..."` with escape sequences (`\n`, `\t`, `\\`, `\"`, `\r`, `\0`)

All comparison and logical operators return Int 0/1 instead of a boolean — so logic results flow straight into arithmetic:

fn is_even(n) {
    n % 2 == 0
}

print(is_even(4) * 100); // 1 * 100 = 100

No casts, no conversions — logic just composes.

let count = 0;
count = count + 1; // assignment
count // 1

if is an expression — the last expression of each branch is the value:

let x = 10;
let y = 20;

if x > y {
    x
} else {
    y
}

let i = 0;
while i < 5 {
    i = i + 1;
}
i // 5

for loops over an integer range a..b (exclusive end):

let sum = 0;
for i in 0..10 {
    sum = sum + i;
}
sum // 0 + 1 + ... + 9 = 45

let total = 0;
for i in 0..100 {
    if i == 5 {
        break;
    }
    total = total + i;
}
total // 0 + 1 + 2 + 3 + 4 = 10

See Builtins for details.