Add “babel-preset-react” npm install babel-preset-react and add “presets” option to babel-loader in your webpack.config.js (or you can add it to your .babelrc or package.js: http://babeljs.io/docs/usage/babelrc/) Here is an example webpack.config.js: { test: /\.jsx?$/, // Match both .js and .jsx files exclude: /node_modules/, loader: “babel”, query: { presets:[‘react’] } } Recently Babel 6 was released and … Read more
Access-Control-Allow-Origin is a response header the server the request goes to must send. And all other Access-Control-Allow-* headers are response headers for servers to send. If you don’t control the server your request is sent to, and the problem with the response is just the lack of the Access-Control-Allow-Origin header or other Access-Control-Allow-* headers you … Read more
In create-react-app relative paths for images don’t seem to work. Instead, you can import an image: import logo from ‘./logo.png’ // relative path to image class Nav extends Component { render() { return ( <img src={logo} alt={“logo”}/> ) } }
The error occurs because the library requires Web APIs to work, which are not available when Next.js pre-renders the page on the server-side. In your case, xterm tries to access the window object which is not present on the server. To fix it, you have to dynamically import xterm so it only gets loaded on … Read more
I feel like there must be some way to dynamically import all files from a specific directory as their name sans extension, and then use those files as needed. Not in ES6. The whole point of import and export is that dependencies can be determined statically, i.e. without executing code. But since you are using … Read more
There are two basic ways to achieve this. DefinePlugin new webpack.DefinePlugin({ ‘process.env.NODE_ENV’: JSON.stringify(process.env.NODE_ENV || ‘development’) }), Note that this will just replace the matches “as is”. That’s why the string is in the format it is. You could have a more complex structure, such as an object there but you get the idea. EnvironmentPlugin new … Read more
There are several way to approach globals: 1. Put your variables in a module. Webpack evaluates modules only once, so your instance remains global and carries changes through from module to module. So if you create something like a globals.js and export an object of all your globals then you can import ‘./globals’ and read/write … Read more
This is special restriction added by developers of create-react-app. It is implemented in ModuleScopePlugin to ensure files reside in src/. That plugin ensures that relative imports from app’s source directory don’t reach outside of it. There is no official way to disable this feature except using eject and modify webpack config. But, most features and … Read more
You’ve mixed different approaches how to include legacy vendor modules. This is how I’d tackle it: 1. Prefer unminified CommonJS/AMD over dist Most modules link the dist version in the main field of their package.json. While this is useful for most developers, for webpack it is better to alias the src version because this way … Read more
It’s called destructuring assignment and it’s part of the ES2015 standard. The destructuring assignment syntax is a JavaScript expression that makes it possible to extract data from arrays or objects using a syntax that mirrors the construction of array and object literals. Source: Destructuring assignment reference on MDN Object destructuring var o = {p: 42, … Read more