I got "Class private methods are not enabled." error when running npm start on a project using leading # to indicate private methods.
I followed this answer: https://stackoverflow.com/a/55822103/4258041 to enable the decorator and it worked, but I cannot find corresponding customize-cra components to add private method syntax in a same way.
"@babel/plugin-proposal-private-methods": "^7.14.5" is already installed and saved in my packages.json.
How to Enable Private Method Syntax Proposal in React App?
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You can use the @babel/plugin-proposal-class-properties. Install with
then add it to your .babelrc plugin section:
Please consider that while I'm writing this is already an outdated answer, since Class Fields are no longer a proposal since ES2022 and this plugin is included in @babel/preset-env.
See here for further information.