Introduction

As your first JavaScript MP, this MP serves as an introduction to programming in JavaScript. To complete this MP, you will need to complete a function that tests if two selected cells contain the same or different values.

This MP, like all MPs in CS 105, is a solo assignment. Review the course syllabus to understand exactly what is expected of you when it comes to academic integrity.

Downloading

To get started, you will first need to download the base files for MP1 here. The file you downloaded is a ZIP file and must be extracted before it can be used.

• If you are on OS X, double clicking on the file you downloaded will extract it as a folder.
• If you are on Windows, you must right click the file and click Extract All.... If you double click instead of extracting, your MP will not work!

Once extracted, you should have a directory that has exactly three files: matchGame.html, mp1.js, and cs105.css. By default matchGame.html will open up in a web browser, which should display the MP1 web page. If you attempt to play the game, you will notice that it an alert box pops up with an error as soon as you make (or fail to make) a match.

Programming

For this MP, you must write a new function inside of mp1.js called testForMatch. This function does not take any arguments, but this function must:

• Return "Match" if the two cells that were clicked are a match
• Return "No Match" if the two cells that were clicked are not a match

In order to find out if the cell is a match, you must call a function to find out what cell was clicked:

• Use the line of code var first = getFirstLetter(); to call the getFirstLetter() function to return the first letter that was clicked.
• Use the line of code var second = getSecondLetter(); to call the getSecondLetter() function to return the second letter that was clicked.
• Based on what you've learned so far in CS 105, compare the variables first and second to determine if they are a match and return the correct value based on if they were a match.

Testing

When you are ready to test this MP, make sure to save the mp1.js file and then open or refresh the matchGame.html page in a web browser. Start playing the game!

• The MP is complete if you are able to reveal every tile by matching them!
• If you get any pop up messages, something has gone wrong! Make sure to carefully read the message and check your JavaScript code.

Submission and Grading

Due to the very simple nature of this MP, there will be no partial credit. You should make sure your MP works completely before submitting it.

Submit MP1 here