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.babelrc.js
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.babelrc.js
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const pkg = require('./package.json')
const pkgVersion = process.env.PKG_VERSION || pkg.version
const ignoreForTests = ['node_modules', 'src/**/*.d.ts']
const ignoreForProduction = [
'src/**/__tests__/**/*',
'src/**/*.spec.ts',
'src/**/*.test.ts',
'src/**/*.d.ts'
]
module.exports = {
presets: ['@babel/typescript', ['@babel/preset-env']],
plugins: [
['@babel/plugin-proposal-nullish-coalescing-operator'], //node v10
['@babel/plugin-proposal-optional-chaining'], // node v10
['@babel/proposal-class-properties', { loose: true }], // stage-3 proposal
'dev-expression',
[
'transform-define',
{
__VERSION__: pkgVersion
}
]
],
env: {
test: {
presets: [
[
'@babel/env',
{
targets: {
node: 'current'
}
}
]
],
ignore: ignoreForTests,
sourceMaps: 'inline'
},
cjs: {
// commonjs for node
presets: [
[
'@babel/env',
{
// debug: true,
modules: 'cjs',
targets: {
node: 10 // es2018
}
}
]
],
ignore: ignoreForProduction
}
}
}