4👍
As noted in the error message, you can fix the problem by running the following command:
$ npm run lint -- --fix
In the future, you can get VSCode to automatically fix these problems by installing the ESLint extension, and enabling the eslint.autoFixOnSave option as documented here: https://marketplace.visualstudio.com/items?itemName=dbaeumer.vscode-eslint
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Source:stackexchange.com