Using the following code: // readline-sync stuff here function add(a, b){ return a + b; } function subtract(a, b){ return a - b; } function multiply(a, b){ return a * b; } function divide(a, b){ return a / b; } function calculate(a, b, operationFunction){ //your code here. } Make a calculator that will take

Create a new JavaScript file and put these two arrays at the beginning. You will write a single function that performs many operations on them. var fruit = ["banana", "apple", "orange", "watermelon"]; var vegetables = ["carrot", "tomato", "pepper", "lettuce"]; After every command, use console.log() to inspect your arrays. A good way

Design patterns are solutions to common programming situations. An extremely popular pattern for web development is Model-view-controller, or MVC, and it's derivatives. This pattern separates our concerns into 3 areas: * Model - which handles the storage of data. * View - displays to the user data and updates according to changes

You will use http://jsonlint.com/ to help you make the following object valid JSON { { name, george; age, 24 friend, true }, {name: fredrick, age: 84 friend, true } } Often it will indicate that the problem in on a certain line, but the real problem is actually on the following line. Notice

CSS Positioning CSS positioning is involved, but take the time to memorize and understand these challenging principles early and it will make your front end developing life a whole lot more pleasant. The four positions we will talk about now are: * static * relative * fixed * absolute Static Static is the default.

Write ONE for loop that console.log's all the even numbers 1 - 10 followed by all the odd numbers 1 - 10. The result will be: 1 3 5 7 9 2 4 6 8 10 This would be incorrect because a 2nd for loop is used: for (var

Write a function where given 2 ints, a and b, it will return True if: one of them is 10 or their sum is 10. function makes10(a, b){ } makes10(9, 10) // True makes10(9, 9) // False makes10(1, 9) // True

Write a function where given two int values, it will return their sum. Unless the two values are the same, then return double their sum. function sumDouble(a, b){ } sumDouble(1, 2) // 3 sumDouble(3, 2) // 5 sumDouble(2, 2) // 8

Write a function where it will take an array of numbers and return true if there are an odd number of odd numbers and return false if there are an even number of odd numbers. Remember the % (modulo) returns the remainder, so if you want to check if n is

JSON stands for JavaScript Object Notation. JSON is a syntax for storing and exchanging data. It will be what we use for storing data in a data base, and using the data from other websites in our own applications. Because we are dealing with objects, you will see many key:

Your Browser (Chrome, IE, Safari, Firefox) has a loop going that is always checking for certain events. These events include mouse clicks (right, left, double), key presses, and even the mouse moving, as well as many others. Here is a list of events. It's overwhelmingly long, so let's focus on

"Back in the day", developers would lay out their entire websites in a table to position things. DON'T EVER DO THAT!! We use CSS and fancy CSS based grid systems like Bootstrap now. Tables are still useful for presenting tabular data, like something you might want to show in an

Colors Even though it's easy to use the built-in CSS colors (like blue, red, burlywood, etc.), when you're doing real web design you'll almost always want to use a tool to find the exact color you want. color.adobe.com is an excellent way to find great colors, because it

CSS is a very powerful and fully-fledged design tool. However, there are a lot of quirks that take years as a web designer to understand and master. Some of the most difficult (or mundane) things to do in CSS include: * Layout * Positioning * Responsive Design Bootstrap does a lot of that