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Install TypeScript

We've been doing a ton of TypeScript work in the browser, let's drop down to your machine for this last chapter.

I'm going to assume you already have node and npm installed, if you don't go do that now. We cover all that in our Learn JavaScript course.

Assignment

Install TypeScript globally. Run the following command:

npm install -g typescript

You should now be able to run the TypeScript compiler with the tsc command. Check its version:

tsc -v

If you don't get back a valid version, either your installation might have failed, or the install location is not in your PATH. For example, for myself on Mac, tsc is in /Users/wagslane/.nvm/versions/node/v20.11.1/bin, so I just need to ensure my PATH includes that directory.

Use the Boot.dev CLI to run the tests. Go ahead and install it following the instructions in the README, then run bootdev login to authenticate.

Run and submit the CLI tests.