Errors

Assertions

Imported from the upstream Vibescript examples at errors/assertions.vibe and runnable in the browser today.

Reference View source

Source errors/assertions.vibe

# vibe: 0.2

def ensure_positive(amount)
  assert amount > 0, "amount must be positive"
  amount
end

def ensure_currency(pledge)
  assert pledge.currency == "USD", "only USD pledges supported"
  pledge
end

def guard_present(value)
  assert value != nil
  value
end

def run
  {
    positive: ensure_positive(42),
    currency: ensure_currency(money("25.00 USD")),
    present: guard_present("hello")
  }
end

Output

Press run to execute run from this example.

upstream errors browser-runner