Exercises file

Author: Reem-Elfalah

prepExercises.js

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+/*Basic Requirments
+//0.Preparation
+
+Download the link & Complete the project mentioned in the slides:
+https://docs.google.com/uc?authuser=0&id=0B_KMvJgAi82ERmhqd1RYdTdHUXc&export=download
+\ ----------Instructions----------\
+ 1. Start a new project for today by downloading this link: https://github.com/yanarchy/rbk-basic/archive/each-dom.zip to your Desktop (or somewhere else). Don't forget to rename the folder to something meaningful!
+ 2. Work on the following with your partner.
+1.Look at the index.html file and discuss with a partner what the different HTML elements do. Please try to answer the following WITHOUT instructors. Please use Google or look through the previous exercises.
+
+ a. What does class mean? What is it used for?
+ b. What does id mean? What is it used for?
+ c. What is the difference between them?
+ d. How do you think they may be useful? 
+2. Try the following in your console:
+
+ document.getElementsByTagName('div');
+document.getElementsByClassName('box');
+document.getElementById('list');
+3. What do they return?
+
+4. Write a function called each that takes in an array and a callback. Each should loop through the array and pass each item in the array through the callback.
+
+ function each (arr, callback) {
+     // TODO: Your code here
+}
+5. Using your each, please add 'Hello World' to each of the divs with a class of 'box'. This should be written in your main.js file.
+
+ function each (arr, callback) {
+     // TODO: Your code here
+}
+ Hint:  You may want to look at .textContent
+6. I need the picture to be smaller. Please give the picture a height of '300px'
+
+7. Using your each function, please change all of the li elements to use the below data:
+
+ var cities = ['San Francisco', 'Cairo', 'Tokyo', 'Nairobi'];
+ Thus, when you are done, you should have this on your page:
+     tSan Francisco
+     Cairo
+     Tokyo
+     Nairobi
+8. Bonus Challenge: Using ONLY JavaScript, please change the current image to something else (you decide!).
+*/