Hi @aryaemami59!, thanks for the Pull Request

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• ✅ login: aryaemami59 / name: Arya Emami (76c3d28, c69224c, 4467fb3, 9da10d4, 90657fa, d58270e, 33f5ee6, a016dff, 8614fd3, 8fa2ddb, e004292, 5ee0c4c, 00af268, 822baf7, 88c03bf, f339591, 3833b5b, 5ac3927, f196b6b, 6ccf10f, 54abd14, eee920e, 5b27883, 9248177, 68ab0af, 8aca3eb, f0edb14, 360cf38, f4f36c2, 0b11b0d, 9f09770, 05e2276, 10d147e, b532667, 90252b3, dad7b0e, b162744, 424ce93, bfa5b0c, 2bfe8b5, beb9f7a, ce4b72b, df7a08d, e7eb303, 599c6a5, 5ea22c5, 3d16b62, 730e5cb, 61abc9b, 63fa91b, 209c791, 82e35a5, 8556132, 3e120f9, 1081889, 421587c, 9881712, 840378c, 9b630ea, e4b439f, b0e5f96, df1e6d9, c341646, eac9360, 99dc9e6, 3daca1c, 0277242, 3b05c55, 4d45eff, 328e30f, 40c77d4, 479847a, 2f9c6fc, 43c66b7, 7540572, 3bcc3a4, 60f6a22, 9b9c6ec, 5eae061, 5e424b6, 74a6988, 9cf9076, 226669e, 6eb0f88, 8c2094a, c16eb7c, f801ddc, 0e6f45e, 89f3b07, b7c6a44, 2111cf7, de86b20, cf360c5, 8a988ca, fe914db, 5ebf9f9, 0f8dc8a, ac08d46, 0ea096f, c5a8862, 7ca2096, 25016fc, 7df58cd, 8d121d5, 3f772e5, 7b00b03, f08ec04, 33f77d0, 9de006e, f369145, ab5ef8f, 150d567, 6ae6261, 0112441, 9a5b2c7, f9a4a89, 9951239, 6e2cff0, 275dbe1, f2b07cd, bd9ce95, 896e08f, 391ff9d, 60a66d4, 7c25109, 41dc58c, 8cc853d, e26d690, 166ca0f, ef4a619, 83a374b, 81e7276, bface3f, 8ece0be, 79d65e4, 0fd89a0, a54f83c, c560d9e, cad6f0a, e985e83, c4143e1, d5a00f9, 9a80b89, 62a9007)

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Hi @aryaemami59!, thanks for the Pull Request

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Wouldn't it be better to use Jiti for this? I think it's perfect for this, it's used in Nuxt and TailwindCSS to load configuration from Typescript files. It is much smaller and faster than Typescript.

the first-class ts config support has been discussed in #12078 eslint/rfcs#50, and seems we didn't come to an agreement to accept it.

it should be possible to use ts config in the current config. The easiest way I can think of is to use --config and --loader, something like:

NODE_OPTIONS=--loader=tsx eslint --config=eslint.config.ts xxx

@cany748 I had to research it to make sure it doesn't create import side effects. But it seems like you were right, it does what I wanted tsx to do without creating side effects.

@aladdin-add

it should be possible to use ts config in the current config. The easiest way I can think of is to use --config and --loader, something like:

NODE_OPTIONS=--loader=tsx eslint --config=eslint.config.ts xxx

That doesn't work you'll get:

Error: tsx must be loaded with --import instead of --loader

And if you use

NODE_OPTIONS=--import=tsx eslint --config=eslint.config.ts

you'll get a YAMLException error if you have a type annotation anywhere in the config file. And if you don't have a type annotation anywhere you'll still get this error:

Error: ESLint configuration in --config is invalid:
        - Property "" is the wrong type

I mean flat config (which is the default in eslint v9). If you are using eslint v8, the default is eslintrc, and you need to specify ESLINT_USE_FLAT_CONFIG=true

@aladdin-add

I mean flat config (which is the default in eslint v9). If you are using eslint v8, the default is eslintrc, and you need to specify ESLINT_USE_FLAT_CONFIG=true

That still won't work with .mts or .cts extensions, it also doesn't respect the type field in package.json.

Out of curiosity what is your opinion in the current solution this PR provides?