module: {
rules: [
{
test: /\.js$/,
exclude: /(node_modules)/,
use: {
loader: "babel-loader",
options: {
presets: ["env", "react"]
}
}
}
]
},
webpack.config.js adds react to report an error in this way, but all the online methods have been tried but not solved. Webpack version 3.10, how to add react and load it with babel-loader?
it took a lot of effort to install babel-preset-react
< H1 > question < H1 > first describe the problem: the current project uses TypeScript, to configure tsconfig.json. Then use webpack + ts-loader to package. now I d like to ask what tsconfig.json and ts-loader do, and whether you need to add the ex...
< H1 > question < H1 > in the webpack template project of vue, I gave the node_module directory include to babel-loader for es6-> es5 translation of the referenced module. As a result, warnings and errors occurred when npm run build , errors and wa...
problem description as described in babel for useBuilitIns , it allows @ babel preset-env to intelligently add polyfill of built-in types that are only used, that is, an on-demand reference to polyfill. .babelrc file { "presets" : ...