🔰top-level scope

JS ⟩ concepts ⟩ scope ⟩ top-level

top-level scope relative to a JS file.

• in Node.js：module scope ( top-level this === module.exports)

• in browser：

  • script mode： global scope.

  • module mode： module scope

⭐️ 重點

global variables don't get created by declaring variables in the top-level scope of a module (module scope).

🗣 討論

📘 手冊