- Create a new repository on GitHub which has both a Readme.md file and a Node.js .gitignore file. It can be a private repository or a public repository.
- Clone the newly created repository to your computer. This is the same step as you performed for the GitHub Classroom repository.
Part 2
- Open the repository in VSCode (make sure it is the directory)
- Initialize a Nodejs project using "npm init -y"
- Edit the Readme.md file to include a favorite quotation.
- Write a new Node.js application that prints one of three quotations to the console when run.
- You can use the Math.random() function (
https://www.w3schools.com/js/js_random.asp
Links to an external site.
), and you can directly enter your quotations as strings in the index.js file.
- Commit your work, including in the commit message "Created quote app".
Part 3:
Add a new javascript file, exercises.js, and export each of the exercises as a function fromChapter 5.
Make sure to add "type":"module" to your package.json file. This will allow you to use "import" and "export" syntax.
3-1. flattening(list)
Use the
reduce
method in combination with the
concat
method to “flatten” an array of arrays into a single array that has all the elements of the original arrays.
let
arrays
=
[[
1
,
2
,
3
], [
4
,
5
], [
6
]];
// Your code here.
// → [1, 2, 3, 4, 5, 6]
3-2. loop(value, test, update, body)
Write a higher-order function
loop
that provides something like a
for
loop statement. It takes a value, a test function, an update function, and a body function. Each iteration, it first runs the test function on the current loop value and stops if that returns false. Then it calls the body function, giving it the current value. Finally, it calls the update function to create a new value and starts from the beginning.
Links to an external site.
When defining the function, you can use a regular loop to do the actual looping.
Links to an external site.
// Your code here.
loop(3,
n
=>
n
>
0,
n
=>
n
-
1,
console.log);
// → 3
// → 2
// → 1
3-3. everyLoop(array, test)
3-4. everySome(array, test)
Analogous to the
some
method, arrays also have an
every
method. This one returns true when the given function returns true for every element in the array. In a way, some is a version of the || operator that acts on arrays, and every is like the && operator.
Implementtwo versions of
every
(everySome and everyLoop)as a function that takes an array and a predicate function as parameters. Write two versions, one using a loop and one using the
some
method.
Links to an external site.
function
everyLoop(array,
test)
{
// Your code here.
}
function
everySome(array,
test)
{
// Your code here.
}
console.log(everyLoop([1,
3,
5],
n
=>
n
10));
// → true
console.log(everyLoop([2,
4,
16],
n
=>
n
10));
// → false
console.log(everyLoop([],
n
=>
n
10));
// → true
Part 4
- Push your changes back to GitHub (using either VS Code or the command line).
- Submit the URL to your repository and ensure that the user lucidbard can access it as a collaborator (that's me).
NOTES:
- You may overachieve and create a more interesting application for the index.js, as long as you document it in the Readme.md.
- Ideas include: Joke generation, mad libs, or a simple calculator.