This is actually a known bug in react-scripts, which is used in create-react-app. They’re apparently working on a fix for react-scripts v5.0.1, but adding the following lines to your package.json will fix it: “resolutions”: { “react-error-overlay”: “6.0.9” } So your package.json should look something like this: { “name”: “whatever”, “version”: “0.1.0”, “private”: true, “dependencies”: { … Read more
This is not really doable with just create-react-app, there is an open issue Here and it doesn’t look like it will be added anytime soon. However, you can use a package called dotenv for that, following are the steps you should take: Install dotenv (make sure to add save dev) npm install dotenv-cli –save-dev In … Read more
If you are needing this for development and wanting to access an api from your react app but getting an error like this- Failed to load http://localhost:8180/tables: The ‘Access-Control-Allow-Origin’ header has a value ‘http://localhost:8180’ that is not equal to the supplied origin. Origin ‘http://localhost:3000’ is therefore not allowed access. Have the server send the header … Read more
The best option is probably to do a normal production build and then run it locally. First install an HTTP server: npm install serve -g Then: npm run build serve -s build By default, it will run on port 5000 so your local URL is http://localhost:5000
I am using this approach to avoid ejecting react-scripts if (process.env.NODE_ENV === ‘production’) { console.log = () => {} console.error = () => {} console.debug = () => {} } index.js import React from ‘react’ import ReactDOM from ‘react-dom’ import App from ‘./App’ import ‘./styles/main.scss’ // replace console.* for disable log on production if (process.env.NODE_ENV … Read more
In my case, “create-react-app” was not installed. to install run this command npm install -g create-react-app Once installation successful, try running npx create-react-app hello-world If this works for you. Great else comment what worked for you,
The issue is resolved for me after installing the following in a row: npm install eslint-plugin-import eslint-plugin-flowtype eslint-plugin-jsx-a11y eslint-plugin-react Have you tried installing eslint locally, like npm install eslint-plugin-import –save-dev ? Edit -Solution: Instead of installing eslint packages one after another, the problem can be alleviated by npm install react-scripts as react-scripts is taking care … Read more
Edited June 2020 Reference @alicia-jasmine “React is purely a front-end framework. Everything accessible to React (even if you embed it through a build step) will later be visible in the front-end code and someone relatively basic to find. To really keep them secret you MUST have something server side!” The following answer will actually expose … Read more
Instead of passing the entire object to the dependency array, make sure that you only pass name. Which you can do by returning the names const [objects, setObjects] = useState([]) useEffect(()=> { getAllObjects() }, [getAllObjects, …objects.map(item => item.name)])
As mentioned in the user guide, you need to explicitly read any global variables from window. Put this at the top of the file and it will work: const google = window.google; The reason we enforce this is because people commonly misunderstand the difference between local variables, imported modules, and global variables, and so we … Read more