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Strictly Speaking

A Learning TypeScript > Configuration Options 🍲 entree project.

Salutations. I am Strictus Typus the Fourth, compiler of the Roman TypeScript armies. My legions are spreading rapidly through the content, conquering as they go.

The masses long for inspiration. Thus it is inspiration I must give them.

Yet, I am not a leader through speech. I am a leader through action. Of conquering soldiery. Of brave deeds and noble intentions, spoken softly so as to not sharply jut out with overt obviousness.

Will you repair for me this speechwriter program? I fear it was originally written without TypeScript's --noImplicitAny or --strictNullChecks modes. You must restore strict type safety -undefined and all- that it may run justly and without type errors.

Setup​

If you haven't yet, set up the github.com/LearningTypeScript/projects repository locally.

shell
git clone https://github.com/LearningTypeScript/projects learning-typescript-projects
cd learning-typescript-projects
npm i
shell
git clone https://github.com/LearningTypeScript/projects learning-typescript-projects
cd learning-typescript-projects
npm i

Open your editor in this project's directory:

shell
code projects/configuration-options/strictly-speaking
shell
code projects/configuration-options/strictly-speaking

In your terminal, run the TypeScript compiler via the tsc script. For example, to start the TypeScript compiler in watch mode:

shell
npm run tsc -- --watch
shell
npm run tsc -- --watch

Files​

  • index.ts: Add type annotations here
  • index.solution.ts Solution code

Notes​

Note: your terminal should be in the strictly-speaking directory, not the root repository's directory.

  • Don't use any or leave any implicit anys.
  • Don't change any runtime code behavior. You're just working in the type system.