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

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Merged
merged 3 commits into from
Nov 21, 2018
Merged

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

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ec0a9cf
Add allowESModules option to babel-preset-react-app
Oct 19, 2018
f659623
changes after feedback
Pajn Nov 19, 2018
063a817
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Timer Nov 20, 2018
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7 changes: 6 additions & 1 deletion packages/babel-preset-react-app/create.js
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,11 @@ module.exports = function(api, opts, env) {
var isEnvProduction = env === 'production';
var isEnvTest = env === 'test';

var useESModules = validateBoolOption(
'allowESModules',
opts.allowESModules,
isEnvDevelopment || isEnvProduction
);
var isFlowEnabled = validateBoolOption('flow', opts.flow, true);
var areHelpersEnabled = validateBoolOption('helpers', opts.helpers, true);
var useAbsoluteRuntime = validateBoolOption(
Expand Down Expand Up @@ -140,7 +145,7 @@ 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
Expand Down