How do I run auto-corrections for lint in an Angular 14 project?

Question

I'm using Angular 14 and the corresponding lint version. I hvae this in my package.json ...

  "name": "my-project",
  "version": "0.0.0",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    ...
    "lint": "ng lint"
  },

When I run "npm run lint," I get errors like

  42:10  error    Type number trivially inferred from a number literal, remove type annotation  @typescript-eslint/no-inferrable-types

Referring to this error in my code ...

  run(myParam: number = 0): Observable<any> {

This seems like the kind of issue lint coudl auto-correct, but when I run

npm run lint --fix

Nothing happens, and in fact, this message is printed out at the end

 2 errors and 0 warnings potentially fixable with the `--fix` option.

What is the proper way to run the auto-fix option for lint in Angular?

The answer below shows the correct way to pass the `--fix` flag to the underlying command, `ng lint`, rather than to `npm run`, but then this is just a dupe of https://stackoverflow.com/q/11580961/3001761. [The docs](https://typescript-eslint.io/rules/no-inferrable-types) for the relevant rule say _"**Some** problems reported by this rule are automatically fixable..."_, emphasis mine; maybe this is one of the cases that aren't. — jonrsharpe, Mar 07 '23 at 12:43
What is an example of a case that would be fixable? If I can successfully see that working then you have yourself a bounty. — Dave, Mar 08 '23 at 22:08
As far as I can tell you _have_ an example of a case that would be fixable, with `npm run -- --fix` -> `ng lint --fix`, as shown by the correct answer you already got. All the incorrect examples in the docs (pretty reputable source I'd think) are fixable too. — jonrsharpe, Mar 08 '23 at 22:33
So running "npm run -- --fix" does not auto-fix it so I'm wondering why and what other information I can provide to solve this. — Dave, Mar 09 '23 at 14:21

score -1 · Accepted Answer · answered Mar 03 '23 at 18:59

-1

It might help to run it like this:

npm run lint -- --fix

answered Mar 03 '23 at 18:59

Felix

Which types of errors/warnings is this meant to correct? I ran the above and this did not auto-correct the error I listed in my question. – Dave Mar 03 '23 at 19:12
2

It should propagate the fix command to the ng lint and prevent the npm command to interpret it. – Felix Mar 04 '23 at 20:54

1 Answers1