Invalid property of 'default'

This is index.js of babel-plugin-dynamic-import-node which I downloaded from npm, also v.1.0.2

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _babelTemplate = require('babel-template');

var _babelTemplate2 = _interopRequireDefault(_babelTemplate);

var _babelPluginSyntaxDynamicImport = require('babel-plugin-syntax-dynamic-import');

var _babelPluginSyntaxDynamicImport2 = _interopRequireDefault(_babelPluginSyntaxDynamicImport);

var _babelTypes = require('babel-types');

var t = _interopRequireWildcard(_babelTypes);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj['default'] = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var TYPE_IMPORT = 'Import';

var buildImport = (0, _babelTemplate2['default'])('\n  Promise.resolve().then(() => require(SOURCE))\n');

exports['default'] = function () {
  return {
    inherits: _babelPluginSyntaxDynamicImport2['default'],

    visitor: {
      CallExpression: function () {
        function CallExpression(path) {
          if (path.node.callee.type === TYPE_IMPORT) {
            var importArgument = path.node.arguments[0];
            var newImport = buildImport({
              SOURCE: t.isStringLiteral(importArgument) || t.isTemplateLiteral(importArgument) ? path.node.arguments : t.templateLiteral([t.templateElement({ raw: '', cooked: '' }), t.templateElement({ raw: '', cooked: '' }, true)], path.node.arguments)
            });
            path.replaceWith(newImport);
          }
        }

        return CallExpression;
      }()
    }
  };
};

Why is it completely different than index.js here, in this repo?

Btw. the one on GitHub doesn’t seem to work (still returns unexpected token), the one on npm works, but only after you add module.exports = exports["default"] at the end of index.js, otherwise babel-jest returns Plugin 1 specified in "base" provided an invalid property of "default"

[menewman]

+1 - We ran into the default issue as well when trying to use dynamic imports + Jest + Meteor, but the following works:

module.exports = require('babel-jest').createTransformer({
  presets: ['flow', 'latest', 'react', 'stage-3'],
  plugins: [
    'babel-plugin-transform-runtime',
    'babel-plugin-transform-object-rest-spread',
    'syntax-dynamic-import',
    require('babel-plugin-dynamic-import-node').default // https://github.com/airbnb/babel-plugin-dynamic-import-node/issues/27
  ]
});

EDIT: As of the latest version of this package, this workaround seems to be unnecessary.

[ljharb]

It’s certainly something this package should have fixed initially, but “not a root .babelrc” isn’t a common use case, so we didn’t anticipate it.