# 044: Input Validation
# Ensure data is correct

form signup:
  input email -> user.email
    validate: is_email
    error: "Please enter a valid email"

  input password -> user.password
    validate: (pw) => pw.length >= 8
    error: "Password must be at least 8 characters"

  input age -> user.age
    validate: (a) => a >= 18
    error: "Must be 18 or older"

  button "Sign Up" -> create_account(user)

create_account(data):
  show "Account created for {data.email}"

# Built-in validators:
# - is_email
# - is_url
# - is_phone
# - is_number
# Custom validators are just functions that return true/false