CS253 Assignment 0

Key	Value
Points	60
Assigned Date	Monday, September 23
Due Date	Friday, October 5 at 5:00pm

Welcome to the first assignment for CS 253: Web Security. ✨

For this assignment, you're going to be completing several command-line workshops to ensure you're up-to-speed on the basics of HTML, JavaScript, and Node.js. The HTML and JavaScript material should be review from CS 142, while the Node.js material may be a more bit challenging.

Prepare

Install Node.js and npm

Install Node.js, a popular JavaScript runtime. Node.js 10 is recommended.

Node.js is a program that you install on your computer. With Node.js you can use the very popular programming language JavaScript to write software. JavaScript is usually used in a browser like Chrome or Firefox but with Node.js it is possible to do a lot more. Combined with other tools, Node.js allows you to write Desktop applications like Word or iTunes, Server applications like Apache, Network applications like Curl or even mobile applications for the iPhone or Android.

Confirm that Node.js was installed. Open your terminal and run this command:

node --version

Node.js comes bundled with npm, a package manager for installing Node.js packages.

Confirm that it was installed:

npm --version

If you have trouble getting Node.js installed, please email the course staff or come to office hours.

Get the starter code

Run this command, replacing YOUR_SUNET_ID with your SUNet ID (e.g. feross).

git clone [email protected]:stanford-web-security/assign0-YOUR_SUNET_ID.git

Enter the folder you just cloned with git:

cd assign0-YOUR_SUNET_ID

Install the necessary local dependencies with npm:

npm install

Install the workshops globally with this command:

npm install -g learnyouhtml javascripting learnyounode

The -g option installs these packages globally so that you can run them as a command in your terminal. After running this command, you'll have three new programs you can run from your terminal: learnyouhtml, javascripting, and learnyounode. We installed them this way so they would be easier to run since you're going to be running these commands a lot for this assignment.

Use StandardJS code style

All the code you write for CS 253 must pass the StandardJS linter. StandardJS enforces code quality, consistency, and catches several types of programmer errors.

You can check your code by running:

npm run lint

If you have errors, you can automatically fix them most of the time by running:

npm run lint-fix

Run the tests

As you make progress, you should periodically run the test suite.

npm test

Part 1 – Learn You The HTML For Much Win! (11 points, 1 per exercise)

Run the following command:

learnyouhtml

You'll see the menu:

Navigate the menu with the up & down arrow keys. Choose a challenge by hitting enter.

You can use any text editor you like to, whether it's vim or emacs or even a visual editor like Sublime Text or VS Code.

Whenever an exercise tells you to create a file, you should use the files we've already created for you in the src/ folder. already created starter files you need to edit to complete the challenges. You just need to edit them

Part 2 – JavaScripting! (20 points, 1 per exercise)

Run the following command:

javascripting

Part 3 – Learn You The Node.js For Much Win! (26 points, 2 per exercise)

Open your terminal and run the following command:

learnyounode

Part 4 – Survey (3 points)

Answer the survey questions in src/SURVEY.md.

Submit

Before you submit

Ensure that the sanity tests pass:

npm test

This command just runs a basic sanity test that ensures your project has the right structure and you didn't leave any required files blank. If npm test doesn't report any errors that doesn't necessarily mean that you've done everything perfectly!

The moment of truth

Submit your work:

npm run submit

Feel free to submit regularly.