This is probably happening because you, like me, were using the old babel parser. Package babel-eslint has been deprecated since March of 2020. The package was migrated to new repo, if you want to know more, I recommend you check Babel git. Just change and install or update to the latest parser packaged in .eslintrc.js: … Read more
By default any code in node_modules is ignored by babel-jest, see the Jest config option transformIgnorePatterns. I’ve also created a PR on your example repo, so you can see it working. While this works, I’ve found it to be extremely slow in real applications that have a lot of dependencies containing ES modules. The Jest … Read more
.babelrc is never auto created. You must go to the root directory of your project. Create a file – touch .babelrc, open the file and enter the babel settings here, then save. If you are following https://babeljs.io/blog/2015/10/31/setting-up-babel-6, Setting up Babel 6 and installed all the plugins and presets as stated, this may help. { “presets”: … Read more
While the answers here are all correct, Babel is not just about ES6 (ES2015). The ECMA standards committee has agreed to release yearly updates to the JavaScript language. Babel will always integrate the standards, whereas we don’t know if all the browsers will, and if they do, whether they will be able to keep up … Read more
babel-core is the API. For v5 the babel package is the CLI and depends on babel-core. For v6, the babel-cli package is the CLI (the CLI bin command is still babel though) and the babel package doesn’t do anything. babel-runtime I guess is just the runtime (polyfill and helpers) to support code that’s already been … Read more
Since Babel 7 the Babel team switched to scoped packages, so you now have to use @babel/core instead of babel-core. But in essence, @babel/core is just a newer version of babel-core. This is done to make a better distinction which packages are official and which are third-party.
Babel has the copy files option for this: babel src –out-dir lib –copy-files Note: It is true that babels primary purpose is to process javascript files, but babel’s big suite of tools these day often makes it unnecessary to go for more complex build script setups as gulp and alike. A gulp-less setup could be … Read more