我正在尝试在我的Material UI样式对象中使用计算属性,但是出现了意外的令牌错误。
下面是代码段,错误和babel-webpack配置。
const useStyles = makeStyles(theme => {
root: {
[desktop]: {
width: "80%",
}
}
});
//webpack.config.babel.js
...
const config = {
entry: ['@babel/polyfill', './src/components/index.js'],
resolve: {
extensions: ['.js', '.jsx', '.ts', '.tsx'],
},
devServer: {
host: '0.0.0.0',
historyApiFallback: {
index: 'index.dev.html',
},
},
output: {
path: path.resolve(__dirname, 'build'),
filename: 'main.js',
chunkFilename: '[name].js',
publicPath: '/build/',
},
optimization: {
minimizer: [
new UglifyJsPlugin({
cache: true,
parallel: true,
sourceMap: true,
extractComments: true,
}),
new OptimizeCSSAssetsPlugin({}),
],
splitChunks: {
cacheGroups: {
default: false,
vendors: {
// name of the chunk
name: 'vendor',
// sync + async chunks
chunks: 'all',
// import file path containing node_modules
test: /node_modules/,
priority: 20,
},
styles: {
name: 'styles',
test: /\.css$/,
chunks: "all",
enforce: true,
},
common: {
name: 'common',
minChunks: 2,
chunks: 'all',
priority: 10,
reuseExistingChunk: true,
enforce: true,
},
},
},
},
module: {
rules: [
{
test: /\.(js|ts)x?$/,
exclude: /node_modules/,
loader: 'babel-loader',
options: {
presets: [
'@babel/typescript',
"@babel/preset-env",
'@babel/preset-react',
'@babel/preset-flow',
],
plugins: [
'@babel/plugin-transform-runtime',
'@babel/plugin-proposal-object-rest-spread',
['@babel/plugin-proposal-decorators', {legacy: true}],
['@babel/plugin-proposal-class-properties', {loose: true}],
['@babel/plugin-transform-computed-properties', {loose: true}],
],
},
},
{
test: /\.s?[ac]ss$/,
use: [
devMode ? 'style-loader' : MiniCssExtractPlugin.loader,
'css-loader',
'sass-loader',
],
},
],
},
node: {
fs: 'empty',
},
// First array is dev only, second is production
plugins: devMode
? [
] : [
new webpack.DefinePlugin({
'process.env.NODE_ENV': JSON.stringify('production'),
}),
new MiniCssExtractPlugin({
filename: '[name].css'
}),
],
};
// Exports
module.exports = config;
at Object.raise(/node_modules/@babel/parser/lib/index.js:6931:17)
在Object.unexpected(/node_modules/@babel/parser/lib/index.js:8324:16)
在Object.semicolon(/node_modules/@babel/parser/lib/index.js:8306:40)
在Object.parseExpressionStatement(/node_modules/@babel/parser/lib/index.js:11147:10)
在Object.parseExpressionStatement(/node_modules/@babel/parser/lib/index.js:2072:18)
at Object.parseStatementContent(/node_modules/@babel/parser/lib/index.js:10746:19)
在Object.parseStatement(/node_modules/@babel/parser/lib/index.js:10612:17)
在Object.parseStatement(/node_modules/@babel/parser/lib/index.js:2045:26)
在Object.parseBlockOrModuleBlockBody(/node_modules/@babel/parser/lib/index.js:11188:25)
在Object.parseBlockBody(/node_modules/@babel/parser/lib/index.js:11175:10)
在Object.parseBlock(/node_modules/@babel/parser/lib/index.js:11159:10)
at Object.parseStatementContent(/node_modules/@babel/parser/lib/index.js:10688:21)
在Object.parseStatement(/node_modules/@babel/parser/lib/index.js:10612:17)
在Object.parseStatement(/node_modules/@babel/parser/lib/index.js:2045:26)
在Object.parseLabeledStatement(/node_modules/@babel/parser/lib/index.js:11139:22)
在Object.parseStatementContent(/node_modules/@babel/parser/lib/index.js:10744:19)
答案 0 :(得分:0)
这是一个简单的错误。我没有将对象括在括号中(缺少返回)。
const useStyles = makeStyles((theme) => ({
root: {
[desktop]: {
...
}
}
}));