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How to Handle Default Exports After Babel 6 Changes?

Barbara Streisand
Barbara StreisandOriginal
2024-10-23 08:58:29570browse

How to Handle Default Exports After Babel 6 Changes?

Babel 6 Modifies Default Export Handling

Issue:

In Babel 6, the default export methodology has been altered, eliminating the previous "module.exports = exports['default']" line. This requires developers to modify previous import syntax from "var foo = require('./foo')" to "var foo = require('./foo').default".

Explanation:

The change aims to align with ES6 standards, resolving confusion caused by the previous cross-compatibility with CommonJS export behavior. Additionally, it prevents the creation of invalid ES6 semantics and unexpected results when named exports are introduced in the future.

Solutions:

  • Use CommonJS directly: This method fully embraces CommonJS export behavior, eliminating the need for '.default' syntax.
  • Install Babel plugin: The "babel-plugin-transform-es2015-modules-commonjs" plugin enables CommonJS export functionality within Babel 6.
  • Manually update code: Although cumbersome, manually updating all code to use '.default' when accessing default exports remains an option.

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