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Secret Secrets

A Learning TypeScript > Functions 🥗 appetizer project. You'll practice writing functions with parameter and return type annotations.

"Secret secrets are no fun. Secret secrets hurt someone." A wise nurse once told me that. And yet, in my business as the best top-secret agent in the business, secret secrets are sine qua nons.

We believe our rival -the dastardly Goldberger- has been spying on our messages. Your mission, should you choose to accept it, is to aide me in creating TypeScript functions for text encoding and secret management. Are you up to the task, recruit?

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/functions/secret-secrets
shell
code projects/functions/secret-secrets

In one terminal, run the TypeScript compiler via the tsc script within whichever step you're working on. For example, to start the TypeScript compiler on the first step in watch mode:

shell
npm run tsc -- --project 01-incoming-cipher --watch
shell
npm run tsc -- --project 01-incoming-cipher --watch

In another terminal, run Jest via the test script on whichever step you're working on. For example, to start tests for the first step in watch mode:

shell
npm run test -- 1 --watch
shell
npm run test -- 1 --watch

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

Steps​

Notes​

  • Please solve these with for loops, not fancy .map/.reduce shenanigans or with npm libraries.
    • For bonus points, you can try making versions of all the steps that only use array methods instead of for loops!
  • Don't import code from one step into another.