README
@flatjs/evolve-preset-babel
The babel presets babel preset for flatjs forge libraray compiler the latest
@babel/preset-typescript
already supportednullish-coalescing-operator
,optional-chaining
, there is no need to mannualy add Babel plugin reference.
Install
npm install @flatjs/evolve-preset-babel
Optimization
optimize @babel/env and plugins, make production bundle smaller.
// use `fast-async` instead of `async-to-generator`
presets: [
[
resolve('@babel/preset-env'),
{
loose: true,
useBuiltIns: false,
targets: {
browsers: ['ie >= 11', 'safari > 10'],
},
exclude: ['transform-regenerator', 'transform-async-to-generator'],
},
],
[
resolve('@babel/preset-typescript'),
{
isTSX: true,
allExtensions: true,
},
],
],
plugins: [
[resolve('@babel/plugin-proposal-decorators'), { legacy: true }],
[resolve('@babel/plugin-proposal-class-properties'), { loose: true }],
['module:fast-async', { spec: true }],
].filter(Boolean),