30-seconds-of-code/snippets/isNode.md

title, tags

title	tags
isNode	node,browser,intermediate

Determines if the current runtime environment is Node.js.

• Use the process global object that provides information about the current Node.js process.
• Check if process is defined and process.versions, process.versions.node are not null.

const isNode = () =>
  typeof process !== 'undefined' &&
  process.versions !== null &&
  process.versions.node !== null;

isNode(); // true (Node)
isNode(); // false (browser)