A linter is a tool that analizes source code to flag programming errors, bugs, stylistic errors, and suspicious constructs. In particular, it helps teams to keep the code consistent between their members.
For example, with ESLint, the rule
@typescript-eslint/quotes: single enforces the use of single quotes throughout the code.
const foo = 'bar';
const foo = "bar";
ESLint & TypeScript
You can run the linting with this command:
npm run lint
And if the linting issues can be automatically fixed, you can also fix them with this command:
npm run lint:fix
Adding New Rules
The rules are specified in the
.eslintrc configuration file located at the root of the project.