77 lines
3 KiB
JSON
77 lines
3 KiB
JSON
{
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/* TSConfig for a TypeScript project that'll get transpiled by Next.js */
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/* TSConfig docs: https://aka.ms/tsconfig.json */
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"compilerOptions": {
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/* We use TypeScript (tsc) as a type checker, not as a build tool */
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"noEmit": true,
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/*
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* Tell TypeScript which all things it can assume that our target
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* runtime will have.
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*
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* In our case, we tell it that the code will run in a modern browser,
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* and will have access to a latest JS (esnext) and the DOM (dom). Our
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* transpiler (Next.js) will ensure that these things hold.
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*
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* Unlike the other individual library components (say how "esnext"
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* implies "ESNext.*"), "DOM.Iterable" (the ability to iterate over DOM
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* elements) is not a subset of "DOM" and needs to be listed out
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* explicitly.
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*
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* Note that we don't need to specify the `target` compilerOption, since
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* tsc isn't actually generating (emitting) the JavaScript.
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*/
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"lib": ["ESnext", "DOM", "DOM.Iterable"],
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/*
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* The module system to assume the generated JavaScript will use.
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*
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* Since we're using a bundler, we should set this to "esnext"
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* https://www.typescriptlang.org/docs/handbook/modules/guides/choosing-compiler-options.html
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*/
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"module": "ESNext",
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/*
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* Tell TypeScript how to lookup the file for a given import
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*
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* From the TypeScript docs:
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*
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* > 'bundler' is for use with bundlers. Like node16 and nodenext, this
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* mode supports package.json `imports` and `exports`, but unlinke the
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* Node.js resolution modes, bundler never requires file extensions on
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* relative paths in imports.
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*
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* > bundler does not support resolution of `require` calls.
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*/
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"moduleResolution": "bundler",
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/* Allow use of `.tsx` files, but don't tranform them */
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"jsx": "preserve",
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/* Ask TypeScript to warn us if we use TypeScript features that cannot
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be used by single-file transpilers */
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"isolatedModules": true,
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/* Enable various workarounds to play better with CJS libraries */
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"esModuleInterop": true,
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/* Speed things up by not type checking `node_modules` */
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"skipLibCheck": true,
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/* Require the `type` modifier when importing types */
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"verbatimModuleSyntax": true,
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/* Enable importing .json files */
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"resolveJsonModule": true,
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"strict": true,
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/* Stricter than strict */
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"noImplicitReturns": true,
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"noUnusedParameters": true,
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"noUnusedLocals": true,
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"noFallthroughCasesInSwitch": true,
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/* e.g. makes array indexing returns undefined. */
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"noUncheckedIndexedAccess": true,
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/* Treat optional (?) properties and properties where undefined is a
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valid value separately */
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"exactOptionalPropertyTypes": true
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}
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}
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