@segment/analytics-next/src/lib/client-hints/index.ts

Analytics Next (aka Analytics 2.0) is the latest version of Segment’s JavaScript SDK - enabling you to send your data to any tool without having to learn, test, or use a new API every time.

import { HighEntropyHint, NavigatorUAData, UADataValues } from './interfaces'

export async function clientHints(
  hints?: HighEntropyHint[]
): Promise<UADataValues | undefined> {
  const userAgentData = (navigator as any).userAgentData as
    | NavigatorUAData
    | undefined

  if (!userAgentData) return undefined

  if (!hints) return userAgentData.toJSON()
  return userAgentData
    .getHighEntropyValues(hints)
    .catch(() => userAgentData.toJSON())
}