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Add support for Vue, Svelte, and Astro file extensions #845

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Oct 6, 2025
Merged

Add support for Vue, Svelte, and Astro file extensions #845

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4 changes: 3 additions & 1 deletion lib/constants.ts
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Expand Up @@ -22,11 +22,13 @@ export const tsExtensions = ['ts', 'tsx', 'cts', 'mts'];

export const jsExtensions = ['js', 'jsx', 'mjs', 'cjs'];

export const frameworkExtensions = ['vue', 'svelte', 'astro'];

export const jsFilesGlob = `**/*.{${jsExtensions.join(',')}}`;

export const tsFilesGlob = `**/*.{${tsExtensions.join(',')}}`;

export const allExtensions = [...jsExtensions, ...tsExtensions];
export const allExtensions = [...jsExtensions, ...tsExtensions, ...frameworkExtensions];

export const allFilesGlob = `**/*.{${allExtensions.join(',')}}`;

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4 changes: 2 additions & 2 deletions readme.md
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Expand Up @@ -108,7 +108,7 @@ Simply run `$ npm init xo` (with any options) to add XO to create an `xo.config.

## Config

You can configure XO options by creating an `xo.config.js` or an `xo.config.ts` file in the root directory of your project, or you can add an `xo` field to your `package.json`. XO supports all js/ts file extensions (js,cjs,mjs,ts,cts,mts) automatically. A XO config is an extension of ESLint's Flat Config. Like ESLint, an XO config exports an array of XO config objects. XO config objects extend [ESLint Configuration Objects](https://eslint.org/docs/latest/use/configure/configuration-files#configuration-objects). This means all the available configuration params for ESLint also work for `XO`. However, `XO` enhances and adds extra params to the configuration objects to make them easier to work with.
You can configure XO options by creating an `xo.config.js` or an `xo.config.ts` file in the root directory of your project, or you can add an `xo` field to your `package.json`. XO supports all js/ts file extensions (js,cjs,mjs,ts,cts,mts) and popular framework extensions (vue,svelte,astro) automatically. A XO config is an extension of ESLint's Flat Config. Like ESLint, an XO config exports an array of XO config objects. XO config objects extend [ESLint Configuration Objects](https://eslint.org/docs/latest/use/configure/configuration-files#configuration-objects). This means all the available configuration params for ESLint also work for `XO`. However, `XO` enhances and adds extra params to the configuration objects to make them easier to work with.

### Config types

Expand Down Expand Up @@ -137,7 +137,7 @@ export default [...] satisfies import('xo').FlatXoConfig
### files

Type: `string | string[] | undefined`\
Default: `**/*.{js,cjs,mjs,jsx,ts,cts,mts,tsx}`
Default: `**/*.{js,cjs,mjs,jsx,ts,cts,mts,tsx,vue,svelte,astro}`

A glob or array of glob strings which the config object will apply. By default `XO` will apply the configuration to [all files](lib/constants.ts).

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