Add missing documentation about using @testing-library/jest-dom with TypeScript #1472
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As I found out with my SvelteKit 5 project, we need to add `"types": ["@testing-library/jest-dom"]` to the `compilerOptions` in the project's `tsconfig.json`. Otherwise my VSCode complains that it can't find e.g. `toBeInTheDocument` (Property 'toBeInTheDocument' does not exist on type 'Assertion<HTMLElement>'.ts(2339)). I'm no TypeScript Pro, so feel free to reword what I wrote. :-)
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neknalb changed the title @testing-library/jest-dom with TypeScript 
Co-authored-by: Tim Deschryver <28659384+timdeschryver@users.noreply.github.com>
timdeschryver approved these changes Mar 3, 2025
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Thanks @neknalb! This is fine, you don't have to update the jest-dom docs as it's already mentioned there.
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| https://github.com/all-contributors please add @neknalb for docs |
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| @all-contributors please add @neknalb for docs |
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| I've put up a pull request to add @neknalb! 🎉 |
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As I found out with my SvelteKit 5 project, we need to add
"types": ["@testing-library/jest-dom"]to thecompilerOptionsin the project'stsconfig.json. Otherwise VSCode complains that it can't find e.g.toBeInTheDocument(Property 'toBeInTheDocument' does not exist on type 'Assertion'.ts(2339)).I'm no TypeScript Pro, so feel free to reword what I wrote. :-)