Function parseInt

packages/effect/test/Effect/mapping.test.ts:11–17

(s: string)

const ExampleError = new Error("Oh noes!")

const parseInt = (s: string): number => {
  const n = Number.parseInt(s)
  if (Number.isNaN(n)) {
    throw new Cause.IllegalArgumentException()
  }
  return n
}

const fib = (n: number): number => {
  if (n <= 1) {