i use a few of new features that do not support, but it installed all polyfill.
ouzhou opened this issue · comments
for example, i only use Array.of() when i set "useBuiltIns": true, "targets": { "ie": 9 }, , but i get all polyfills which IE9 not support.
my babel-preset-env version is @1.6.1
and i tried using @next and set "useBuiltIns": "entry", but it warned Cannot read property 'loose' of undefined
@ouzhou with version 1.6.1, it will load all polyfills needed for your target environment(s), which is an improvement from babel-polyfill which loads all polyfills regardless.
With version 2.x, useBuiltIns: entry matches this behavior, while useBuiltIns: usage will only add polyfills based on your code.
As for the loose option, can you provide your Babel config?
I have the same problem.
It my Babel config
{
"plugins": [
"lodash",
"transform-runtime",
"transform-proto-to-assign",
"transform-decorators-legacy",
"transform-decorators",
"transform-class-properties"
],
"presets": [["env", {
"loose": true,
"module": false,
"useBuiltIns": "entry",
"targets": {
"browsers": ["last 2 versions", "safari >= 7", "ie 9"]
}
}], "react", "stage-3", "flow"]
}
@weizongqi1990 Can you also provide your package.json?
As a side note, I transform-decorators and transform-decorators-legacy are incompatible.
@nicolo-ribaudo
Thanks.
{
"name": "front-end",
"version": "0.0.1",
"description": "front-end",
"main": "index.js",
"author": "weizongqi1990",
"license": "MIT",
"config": {
"webpack": "node_modules/.bin/webpack",
"dllConfig": "./bulid/webpack/webpack.dll.config.js",
"passportConfig": "./bulid/webpack/webpack.passport.config.js",
"wwwConfig": "./bulid/webpack/webpack.www.config.js"
},
"scripts": {
"predev:watch": "NODE_ENV=dev:local concurrently \"$npm_package_config_webpack --config $npm_package_config_dllConfig\"",
"dev:watch": "NODE_ENV=dev:local concurrently \"node_modules/.bin/webpack-dev-server --config ./bulid/webpack/index.js\"",
"build": "NODE_ENV=production concurrently \"$npm_package_config_webpack --config $npm_package_config_passportConfig\" \"$npm_package_config_webpack --config $npm_package_config_wwwConfig\"",
"build:as": "BUILD_TYPE=as NODE_ENV=production concurrently \"$npm_package_config_webpack --config $npm_package_config_passportConfig\" \"$npm_package_config_webpack --config $npm_package_config_wwwConfig\"",
"buildwww": "NODE_ENV=production concurrently \"$npm_package_config_webpack --config $npm_package_config_wwwConfig\"",
"buildwww:as": "BUILD_TYPE=as NODE_ENV=production concurrently \"$npm_package_config_webpack --config $npm_package_config_wwwConfig\"",
"test": "flow && jest",
"flow": "flow --watch"
},
"devDependencies": {
"add-asset-html-webpack-plugin": "^2.1.2",
"autoprefixer": "^7.1.4",
"babel-core": "^6.26.0",
"babel-eslint": "^7.2.3",
"babel-jest": "^20.0.3",
"babel-loader": "^7.1.2",
"babel-plugin-lodash": "^3.2.11",
"babel-plugin-module-resolver": "^2.7.1",
"babel-plugin-transform-class-properties": "^6.24.1",
"babel-plugin-transform-decorators": "^6.24.1",
"babel-plugin-transform-decorators-legacy": "^1.3.4",
"babel-plugin-transform-es2015-classes": "^6.24.1",
"babel-plugin-transform-runtime": "^6.23.0",
"babel-preset-env": "^1.6.1",
"babel-preset-react": "^6.24.1",
"babel-preset-stage-3": "^6.24.1",
"bundle-loader": "^0.5.5",
"concurrently": "^3.5.0",
"css-loader": "^0.28.4",
"enzyme": "^2.9.1",
"eslint": "^3.19.0",
"eslint-config-airbnb": "^15.1.0",
"eslint-config-airbnb-base": "^11.3.1",
"eslint-friendly-formatter": "^3.0.0",
"eslint-import-resolver-babel-module": "^3.0.0",
"eslint-import-resolver-webpack": "^0.8.3",
"eslint-loader": "^1.8.0",
"eslint-plugin-flowtype": "^2.34.0",
"eslint-plugin-import": "2.7.0",
"eslint-plugin-jsx-a11y": "5.1.1",
"eslint-plugin-react": "^7.1.0",
"extract-text-webpack-plugin": "^3.0.0",
"file-loader": "^1.1.5",
"flow-bin": "0.52.0",
"happypack": "^4.0.0-beta.5",
"html-loader": "^0.5.1",
"html-webpack-plugin": "^2.30.1",
"inline-manifest-webpack-plugin": "^3.0.1",
"jest": "^20.0.4",
"less": "^2.7.2",
"less-loader": "^4.0.5",
"lodash-webpack-plugin": "^0.11.4",
"postcss-loader": "^2.0.6",
"raw-loader": "^0.5.1",
"react-test-renderer": "^16.0.0",
"source-map-loader": "^0.2.1",
"style-loader": "^0.18.2",
"url-loader": "^0.6.2",
"webpack": "^3.8.1",
"webpack-bundle-analyzer": "^2.9.0",
"webpack-chunk-hash": "^0.5.0",
"webpack-dev-server": "^2.9.2",
"webpack-merge": "^4.1.0",
"webpack-uglify-parallel": "^0.1.4"
},
"dependencies": {
"axios": "^0.16.2",
"babel-polyfill": "^6.26.0",
"babel-standalone": "^6.26.0",
"console-polyfill": "^0.3.0",
"core-js": "^2.5.0",
"date-fns": "^1.28.5",
"es6-promise": "^4.1.1",
"history": "^4.7.2",
"localforage": "^1.5.2",
"lodash": "^4.17.4",
"marked": "^0.3.6",
"mobx": "^3.3.1",
"mobx-react": "^4.3.3",
"nprogress": "^0.2.0",
"polished": "^1.8.1",
"prismjs": "^1.6.0",
"prop-types": "^15.5.10",
"react": "^16.0.0",
"react-addons-perf": "^15.4.2",
"react-dom": "^16.0.0",
"react-hot-loader": "next",
"react-motion": "^0.5.2",
"react-router": "^4.2.0",
"react-router-dom": "^4.2.2",
"react-router-transition": "^1.1.1",
"react-tiny-virtual-list": "^2.1.2",
"shallowequal": "^1.0.2",
"styled-components": "^2.2.1",
"webpack-dev-middleware": "^1.12.0",
"webpack-sources": "^1.0.1",
"why-did-you-update": "^0.0.8"
},
"jest": {
"globals": {
"widow": true
},
"collectCoverage": true,
"modulePaths": [
"<rootDir>/src/"
],
"moduleNameMapper": {
"\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$": "<rootDir>/flow/__mocks__/fileMock.js",
"\\.(css)$": "<rootDir>/flow/__mocks__/styleMock.js"
},
"setupFiles": [
"<rootDir>/test/main.js"
]
}
}
useBuiltIns: entry/usage is only supported in version 2, you are using ^1.6.1.
But,i use ^2,i got
/Users/nico/56hello/fronted/master/front-end/node_modules/babel-core/lib/transformation/file/options/option-manager.js:328
[0] throw e;
[0] ^
[0]
[0] TypeError: Cannot read property 'loose' of undefined (While processing preset: "/Users/nico/56hello/fronted/master/front-end/node_modules/babel-preset-env/lib/index.js")@weizongqi1990 babel-preset-env 2.x (really, you should use the latest 7.0-beta.x) requires matching 7.0-beta.x Babel dependencies.
Sorry for the confusion, we're working on making this clearer asap.
@existentialism
Thank you for your reply!
This issue has been moved to babel/babel#6596.