Sample Gleam File

// Sample Gleam program — samplefiles.com
import gleam/float
import gleam/io
import gleam/list

pub type Customer {
  Customer(id: Int, name: String, balance: Float)
}

pub fn is_vip(customer: Customer) -> Bool {
  customer.balance >=. 10_000.0
}

pub fn main() {
  let customers = [
    Customer(1, "Ada", 12_500.0),
    Customer(2, "Grace", 830.5),
    Customer(3, "Linus", 10_000.0),
  ]
  list.each(customers, fn(c) {
    let tag = case is_vip(c) {
      True -> " VIP"
      False -> ""
    }
    io.println(c.name <> " " <> float.to_string(c.balance) <> tag)