What is the difference between export and export default in js?

export default is used to export a single value as the default export, while export with named exports is used to export multiple values as named exports. The choice between the two syntaxes depends on your specific needs for code organization and reusability.

How do I export everything from a js file?

Summary

  1. Before declaration of a class/function/…: export [default] class/function/variable …
  2. Standalone export: export {x [as y], …} .
  3. Re-export: export {x [as y], …} from "module" export * from "module" (doesn't re-export default). export {default [as y]} from "module" (re-export default).

What is the difference between export and export default in next js?

Exporting Default vs. The default export can be a function, class, object, or any other value. It allows importing this value with any name. export (Named Exports): Named exports allow exporting multiple values from a module. Each exported value must be imported using the exact same name.

Should I use default export or not?

It's recommended to avoid using default exports and instead opt for named exports whenever possible. By doing so, you'll have a more organized and maintainable codebase that's easier to work with in the long run.

Запомним: фигурные скобки необходимы в случае именованных экспортов, для export default они не нужны. Именованный экспорт, Экспорт по умолчанию …
В двух словах, export default позволяет экспортировать единственный объект (компонент React, функцию и т.д.) из JS или JSX файла.
Касательно экспорта по умолчанию (default), он может быть только один для каждого отдельного модуля (файла). Дефолтный экспорт может …