Here you find the readings you have to complete before the fourth lecture.

Go here to see the Git Homework

• Go through the review of the first week
• Go through the review of the second week
• Go through the review of the third week

Deadline Monday

Your fellow students have provided you with feedback in Trello. Your teachers have provided you with feedback in issues in Github.

• Implement both feedback from Trello and Github.
• Check on one of your fellow students code and issues and see if her or she implemented their feedback correctly. If there are some things that can be improved make an issue suggesting further improvements. If you think that the feedback has been implemented correctly create a issue saying something like: "nice work you can clear your issues".

Deadline Monday

Your Github should contain two repositories called hyf-javascript1 and hyf-commandline . Inside the JavaScript repository you should have three folders, called week1, week2, and week3 (or something similar). Inside these folders you should have the different assignments (a file per exercises). Ty and find proper names for the exercises that reflect somehow what is going on in the code. Avoid using spaces in your file names, this makes it harder to "run" you files. Also make sure that all your JavaScript files have a .js extension.

Deadline Wednesday

IMPORTANT NOTE In each assignment write at least two console.log statements to verify if your code works correctly. In other words proof that you code works as expected. If you need inspiration look at the steps defined in the assignments from last week.

1. Strings!
1.1 Let's consider the following string: let myString = "hello,this,is,a,difficult,to,read,sentence"
1.2 Add the string to your file and console.log it.
1.4 Console.log the length of myString.
1.5 The comma's make that the sentence is quite hard to read. Find a way to remove the comma's from the sting and replace them with a spaces
1.6 Console.log myString to see if you succeeded.

2. Arrays!
consider the following array:

let favoriteAnimals = ['blowfish', 'capricorn', 'giraffe'];

2.1 Add a statement that adds Mauro's favorite animal (turtle) to the existing array
2.2 Log your new array!
2.3 Now add Jim's favorite animal to the array, its a 'meerkat', but make sure it will be placed after 'blowfish' and before 'capricorn'.
2.4 Write a console.log statement that explains in words you think the new value of the array is.
2.5 Log your new new array!
2.6 Log the length of the array, add a message: "The array has a length of: "(here you should show the length of the array)
2.7 Jason does not like giraffes, delete this animal from the array
2.8 Again log your new array.
2.9 Now if unlike Jim, you don't like meerkats and you want to delete it from the array, but you don't know the position or the index of the item in the array, how can you find it?
2.10 Log the index of meerkat to the console. Add a message so it says: "The item you are looking for is at index: " (here you should show the index of the item)

Deadline Saturday

1. Open a new js file and start by declaring an array that contains 10 strings. These strings should be of book titles you have read (or made up) and be lowercase without spaces or special characters so that you can use these later as Id's. (Example: Harry Potter's - The Chamber of Secrets -> harry_potter_chamber_secrets).

2. Create a basic html file called index.html and use it to load the js file, confirm the console.log show the array. (This is for debugging and making sure everything is in order. Delete it later when you're done :))

3. Make a function (or functions) that generate a ul with li elements for each book ID in the array using a for loop.

4. Make an object containing information for each book. Each item (object) in this object should have the book ID you thought up in point 1 as a key, and it should have at least the following fields: title, language and author.

5. Now change the function you used to display the book ID's in a list to take the actual information about the book from the object and display that. Make sure you choose the right html elements for each piece of info, for instance, a heading for the title.

6. Beautify your html page with css, add sources and alts to each of the images.

7. Download book covers for each book, construct a new Object which has as keys the bookId's again, and as value the path to the image source (e.g. {"harry_potter_blabla": "./img/harry_potter_blabla.jpg", ...}). Now loop over these entries (hint: Object.keys(objectName) gives you an array containing the keys). Then write a function which places an image at the corresponding li element. Remember that Objects are not ordered, so you cannot guarantee that the first key is the first li element. (Hint: you could give each li item an id tag by modifying the function you made before)

How to hand in your homework:
• Upload your homework in your "hyf-javascript1" Github repository. Make sure to create a new folder "week3" first. 
• Upload your homework files inside the week3 folder and write a description for this “commit”.
• Your hyf-javascript1/week3 should now contain an index.html, main.css and a script.js file (and the images folder)
• Place the link to your repository folder in Trello.

Deadline Saturday

• https://www.freecodecamp.com/challenges/declare-javascript-objects-as-variables
• https://www.freecodecamp.com/challenges/make-instances-of-objects-with-a-constructor-function
• https://www.freecodecamp.com/challenges/make-unique-objects-by-passing-parameters-to-our-constructor
• https://www.freecodecamp.com/challenges/make-object-properties-private

And just for fun ... https://www.freecodecamp.com/challenges/sum-all-numbers-in-a-range

the Bonus homework for this week (for those of you want an extra challenge) do the following:

• Sign up on codewars.com
• In you account setting under “clan” write “Hack Your Future”
• Go do the challenges in the following playlist: https://www.codewars.com/collections/fun-fun-fundamentals

Codewars is really a lot of fun, and you can compete against each other who has the most points it’s a great way to really practice JavaScript a lot in various problems.

Please note, there are various challenges all sorted on difficultly called KIU. Kiu 8 is the easiest, Kiu 1 is the hardest, we expect you to do challenges around level 8, 7 maybe.

enjoy!

⭐ Additional resources and review: here (work in progress):star: