is-in-browser/src/index.ts

Simple check to see if current app is running in browser

export const isJsDom =
  typeof navigator === "object" &&
  navigator.userAgent &&
  navigator.userAgent.includes("jsdom");

export const isNode =
  typeof process === "object" && !!process.versions && !!process.versions.node;

export const isBrowser =
  typeof window === "object" &&
  typeof document === "object" &&
  document.nodeType === 9;

export default isBrowser;