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由 Lukas Eipert 创作于Once a TC39 proposal becomes part of the ECMAScript spec, babel deprecates the corresponding `@babel/plugin-proposal-*` in favour of a `@babel/plugin-transform-*`. We have been enabling a hardcoded list of plugins. Some for compatibility with webpack@4, some for unknown reasons. We should double check whether we need them, but that should be done in a separate MR. That being said, all plugins we use made it to the ECMAScript standard and we can happily use them as transform plugins.
由 Lukas Eipert 创作于Once a TC39 proposal becomes part of the ECMAScript spec, babel deprecates the corresponding `@babel/plugin-proposal-*` in favour of a `@babel/plugin-transform-*`. We have been enabling a hardcoded list of plugins. Some for compatibility with webpack@4, some for unknown reasons. We should double check whether we need them, but that should be done in a separate MR. That being said, all plugins we use made it to the ECMAScript standard and we can happily use them as transform plugins.
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babel.config.js 1.09 KiB
const coreJSVersion = require('./node_modules/core-js/package.json').version;
let presets = [
[
'@babel/preset-env',
{
useBuiltIns: 'usage',
bugfixes: true,
corejs: { version: coreJSVersion, proposals: true },
modules: false,
},
],
];
// include stage 3 proposals
const plugins = [
'@babel/plugin-transform-class-properties',
'@babel/plugin-transform-json-strings',
'@babel/plugin-transform-private-methods',
// See: https://gitlab.com/gitlab-org/gitlab/-/issues/229146
'@babel/plugin-transform-arrow-functions',
// See: https://gitlab.com/gitlab-org/gitlab/-/issues/336216
'@babel/plugin-transform-optional-chaining',
// See: https://gitlab.com/gitlab-org/gitlab/-/issues/336216
'@babel/plugin-transform-nullish-coalescing-operator',
'lodash',
];
// Jest is running in node environment
const isJest = Boolean(process.env.JEST_WORKER_ID);
if (isJest) {
presets = [
[
'@babel/preset-env',
{
targets: {
node: 'current',
},
},
],
];
}
module.exports = { presets, plugins, sourceType: 'unambiguous' };