Welcome to BHS Computer Science. If you are a student in the class, the first thing you need to do (and which we should have done in class) is set up your GitHub account.
Once you have a GitHub account, click “Log in to GitHub” below to proceed. Or you can click “Use anonymously” to play with the environment but you will not be able to save your work or submit assignments. (You can always log in later by clicking the at the top of the page.)
If you don’t have a GitHub account yet, please create one and then log in here for further instructions.
Congratulations! You have successfully connected this app to GitHub. However you are not yet a member of the GitHub organization for this class, something Mr. Seibel needs to set up for you.
This is your GitHub profile URL:
Click the clipboard icon to copy it and then submit it at this form so he can add you.
Congratulations! You have successfully connected this app to GitHub. And it looks like you have an invitation to join the GitHub organization for this class. You need to accept that invitation before you can proceed. The invite should be sent to whatever email you used when you created your GitHub account.
I see you are logged into GitHub and a member of the berkeley-high-cs GitHub organization. However there seems to have been some problem finishing the setup for your account. Please let Mr. Seibel know.
This is a tool for the BHS Computer Science class at Berkeley High School. It is intended to provide a simple environment for experimenting with Javascript without all the complexities of a full development environment such as ReplIt or Glitch which we may use later in the year.
It is also designed to take advantage of the browser’s ability to run Javascript natively. It does not need access to a server to run code making in extremely responsive even if the Wifi is flaking out.
Finally, under the covers it is saving work to a GitHub repository in a very simplified workflow that does not depend on immediately learning any git commands. Code written in this environment for each assignment is saved to a directory and branch specific to that assignment each time it is saved. Thus when the assignment is done, it is easy to go to GitHub and create a PR containing just the work on that assignment which can then be commented on and worked on further before it is turned in and merged to main.
You're all set! You don't need to worry about this yet but we have successfully created a GitHub repository for your work:
You can get to it any time by clicking on your GitHub username at the top-right of the screen.
A function that given an array of numbers returns an array of only the even numbers.
A function that given an array of numbers returns an array of only the odd numbers.
A function that given an array of numbers returns an array of only numbers greater than 100.
A function that given an array of objects with a name property returns an array just the names.
A function that given an array of objects with a grade property returns an array just the grades.
A function that given an array returns an array of pairs where each pair is a two-element arrays containing the same item twice.
A function that given a non-empty array of objects with a grade (9-12) property returns the average grade.
A function that given an array returns a flattened array of pairs made from each element.
A function that given an array of numbers return true if, and only if, they are all even.
A function that given an array of numbers return true if, and only if, at least one is even.
A function that given an array of strings returns a list of the lengths of all the names that start with an uppercase letter.
For this assignment I specifically want you to use the higher-order
array methods we learned about yesterday: filter,
map, reduce, flatMap,
every, and some. Each of the functions you are
asked to write in this assignment can be written using a single
expression involving one or more of those methods. I.e. you should not
need to write any loops or if
statements. It also means if you want you can use the shorthand function
form and write each of these in one line of code. If you want to write
named helper functions instead of passing anonymous functions, that's
fine.