Function parseNumberHeader

packages/effect/src/unstable/http/HttpClient.ts:1383–1393

(value: string | undefined)

}

const parseNumberHeader = (value: string | undefined): number | undefined => {
  if (value === undefined) {
    return undefined
  }
  const match = /-?\d+(?:\.\d+)?/.exec(value)
  if (match === null) {
    return undefined
  }
  const parsed = Number(match[0])
  return Number.isFinite(parsed) ? parsed : undefined
}

const getHeader = (headers: Headers.Headers, ...keys: Array<string>): string | undefined => {
  for (let i = 0; i < keys.length; i++) {