Configure TypeScript, ESLint, Biome, Deno and/or Angular to ensure fully typed code. Because strict
mode is not enough.
A posts series explains the motivation of this lib.
Tip
I am also the author of the Angular Schematics extension for Visual Studio Code, installed 1 million times. Feel free to give it a try.
Just run the following commands in your terminal:
cd path/to/my-project-with-tsconfig
npx typescript-strictly-typed@latest
Important
Going fully typed is a choice to make at the very beginning of a project.
Enabling all strict options at once in an existing project is not recommended, as hundred of errors would appear. Converting an existing project to full strict mode is still possible and encouraged, but it should be done incrementally, by activating each option one by one.
It modifies these configurations:
- TypeScript compiler options
strict
(includes:noImplicitAny
,strictNullChecks
,alwaysStrict
,strictBindCallApply
,strictFunctionTypes
,strictPropertyInitialization
,noImplicitThis
,useUnknownInCatchVariables
)exactOptionalPropertyTypes
noFallthroughCasesInSwitch
noImplicitOverride
noImplicitReturns
noPropertyAccessFromIndexSignature
noUncheckedIndexedAccess
- ESLint rules
eqeqeq
prefer-arrow-callback
prefer-template
- TypeScript ESLint rules
@typescript-eslint/explicit-function-return-type
@typescript-eslint/no-explicit-any
@typescript-eslint/no-non-null-assertion
@typescript-eslint/no-unsafe-argument
@typescript-eslint/no-unsafe-assignment
@typescript-eslint/no-unsafe-call
@typescript-eslint/no-unsafe-member-access
@typescript-eslint/no-unsafe-return
@typescript-eslint/prefer-for-of
@typescript-eslint/prefer-nullish-coalescing
@typescript-eslint/prefer-optional-chain
@typescript-eslint/restrict-plus-operands
@typescript-eslint/restrict-template-expressions
@typescript-eslint/strict-boolean-expressions
@typescript-eslint/use-unknown-in-catch-callback-variable
- Biome linter rules
noDoubleEquals
noExplicitAny
noImplicitAnyLet
noNonNullAssertion
useArrowFunction
useForOf
useOptionalChain
useTemplate
- Angular compiler options
strictInjectionParameters
strictInputAccessModifiers
strictTemplates
- Angular ESLint options
@angular-eslint/template/no-any
- Deno
- add the same compiler options as for TypeScript
- add the same lint rules as for ESLint (the ones which exist in Deno)
Note
To keep configuration concise, you may not see all TypeScript, Biome and Deno options added, if they are already enabled by an existing preset. All ESLint rules will be added, as ESLint configuration is too complex to detect presets.
MIT