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Add allowESModules option to babel-preset-react-app (#5487)

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* Add allowESModules option to babel-preset-react-app

* changes after feedback

* Apply suggestions from code review

Co-Authored-By: Pajn <rasmus@eneman.eu>
This commit is contained in:
Rasmus Eneman
2018-11-21 20:39:33 +01:00
committed by Joe Haddad
parent fb465a39e5
commit a5ea56abbf
1 changed files with 6 additions and 1 deletions
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7
packages/babel-preset-react-app/create.js
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@@ -29,6 +29,11 @@ module.exports = function(api, opts, env) {
var isEnvProduction = env === 'production';
var isEnvTest = env === 'test';
var useESModules = validateBoolOption(
'useESModules',
opts.useESModules,
isEnvDevelopment || isEnvProduction
);
var isFlowEnabled = validateBoolOption('flow', opts.flow, true);
var isTypeScriptEnabled = validateBoolOption(
'typescript',
@@ -151,7 +156,7 @@ module.exports = function(api, opts, env) {
// https://babeljs.io/docs/en/babel-plugin-transform-runtime#useesmodules
// We should turn this on once the lowest version of Node LTS
// supports ES Modules.
useESModules: isEnvDevelopment || isEnvProduction,
useESModules,
// Undocumented option that lets us encapsulate our runtime, ensuring
// the correct version is used
// https://github.com/babel/babel/blob/090c364a90fe73d36a30707fc612ce037bdbbb24/packages/babel-plugin-transform-runtime/src/index.js#L35-L42