Wipple’s syntax was designed with just a few rules and balances punctuation
with English words, making it a great first programming language. Instead of
sticking with conventional names like print, Wipple uses more
intuitive names like show.
greet : name -> format "Hello, _!" name
show (greet "world") -- Hello, world!Wipple has a powerful type system that checks your mistakes to prevent crashes at runtime. You can document a function’s behavior using a type annotation, or let Wipple figure out the types for you. And you can use traits to extend existing code with new behavior.
Person : type {
name :: Text
age :: Number
}
instance (Show Person) : { name age } ->
format "_ is _ years old" name age
bob : Person {
name : "Bob"
age : 30
}
show bob -- Bob is 30 years old
Instead of using if, Wipple’s when expression
enables you to check complex conditions with ease. Before your code even
runs, Wipple ensures that it handles all possible conditions — no surprises
in production.
report-card :: Grade -> Text
report-card : grade -> when grade {
A -> "top of the class"
B -> "good job"
C -> "need to study"
D or F -> "didn't pass"
}Start coding right now in the Wipple Playground. Works on any device.
The Wipple Guide has tutorials for experienced programmers coming from languages like JavaScript and Python.