|> (Pipe Operator)

value |> f(a) means f(value, a). A bare function on the right receives the value as its argument. Chain calls to make the data flow explicit.

Example

fn double(n) = wrapMul(n, 2)
let values = range(1, 4) |> map(double) |> map(toString) |> toList |> join(",")
let difference = 7 |> wrapSub(2)
print("${values} / ${difference}")

double n = wrapMul n 2
values = range 1 4 |> map double |> map toString |> toList |> join ","
difference = 7 |> wrapSub 2
print "${values} / ${difference}"

Both programs print 2,4,6 / 5. The subtraction demonstrates argument order: 7 |> wrapSub(2) subtracts 2 from 7. The total wrapMul and wrapSub helpers choose wrapping explicitly.