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babel.config.js
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babel.config.js
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module.exports = api => {
const presets = [
['@babel/env', {
loose: true,
modules: process.env.ES_MODULES ? false : 'commonjs',
targets: {
browsers: ['last 4 versions'],
},
useBuiltIns: false,
}],
]
const plugins = [
'autobind-class-methods',
['@babel/proposal-class-properties', {
loose: true,
}],
['@babel/proposal-decorators', {
legacy: true,
}],
'@babel/proposal-do-expressions',
'@babel/proposal-export-default-from',
'@babel/proposal-export-namespace-from',
'@babel/proposal-function-bind',
'@babel/proposal-function-sent',
'@babel/proposal-json-strings',
'@babel/proposal-logical-assignment-operators',
['@babel/proposal-nullish-coalescing-operator', {
loose: true,
}],
'@babel/proposal-numeric-separator',
'@babel/proposal-optional-catch-binding',
['@babel/proposal-optional-chaining', {
loose: true,
}],
['@babel/proposal-pipeline-operator', {
proposal: 'minimal',
}],
'@babel/proposal-throw-expressions',
'@babel/syntax-dynamic-import',
'@babel/syntax-import-meta',
['@babel/transform-classes', {
loose: true,
}],
['module-resolver', {
root: api.env() === 'test'
? ['./src', './spec']
: ['./src'],
}],
'ramda',
api.env() === 'test' && 'istanbul',
].filter(Boolean)
return {
plugins,
presets,
}
}