Write Krypton, hit Run, see output — no install, no signup. The full lang subset that runs in-browser today.
Tip: edit the code below. Drop in your own functions, try the stdlib helpers (kp, len, listNew, mapNew, htmk, kcss). Lessons covering match/struct/try, file I/O, HTTP, JSON need the real local kcc — try kcc -r yourfile.k.
// Welcome to the Krypton playground.
// Edit the code below and hit Run.
func fib(n) {
if n <= 1 { emit n }
emit fib(n - 1) + fib(n - 2)
}
just run {
let i = 0
while i < 10 {
kp("fib(" + i + ") = " + fib(i))
i = i + 1
}
}
Click ▶ Run to execute.
Want guided lessons instead? Start at Learn Krypton.