Assignment 5
Due: Wednesday, May 26
JavaScript Expressions and Functions
- Create a Web page or Web pages similar to
mathtest.html that tests the following
Javascript Math functions
Math.max, Math.floor, and Math.random. You can start
with the example file mathtest.html and modify it as necessary.
It may be easier to create separate pages for each function (e.g., mathtest-max.html, mathtest-floor.html,
etc.). In each case, the user should be prompted to enter the value for the
operands of the operation, and the output should be written onto the page in teh
same style as the example program in mathtest.html
. Note that the Math.random() function does not have any input
parameters, once it is invoked it simply produces a random number between 0 and
1.
- Create a Web page named grades.html that can be used to compute a
student's overall average for a course. Your page should prompt the user to
enter his or her homework average, lab average, midterm score, and final exam
score. The page should store each value as a number in a separate variable and
then use the four numbers to to compute and display the course average. Assume
the following grade weightings: Homework (25%), Labs (20%), Midterm (25%), and
Final (30%). The class average is computed as the weighted average of these
four elements:
average = homework*0.25 + labs*0.20 + midterm*0.25 + final*0.30
Your final display on the page should show the scores inputted for each item
followed by the overall class average (something like this Figure). - Modify
the convert.js library from class by adding
two metric conversion functions: a function m2k to convert a
distance from miles to kilometers and a function p2k to convert a given weight
in pounds to kilograms. Then create a Web page metric-convert.html that
prompts the user twice (once to enter a distance in miles and once to enter a
weight in pounds) and writes out the equivalent values in metric units. Be
sure that your Web page displays both the inputs provided by the user and the
outputs computed by the program (you can use the
convert2.html program discussed in class
as a model).
What to Submit
Before uploading the files to the server, test your page on
your local computer to make sure everything works and looks as intended. On your
student Web space (inside the public_html folder), navigate to the
it130 Folder and create a new subfolder
called hw5. Using SSH upload the pages you have created and any associated files
(including your convert.js file from problem 3) to this
folder on the server, set their
permissions for the files and folders, and check them with your browser. You should create your Web pages using a text editor such as
TextPad or similar program on your local computer before uploading it. The link to submit should look something
line the following:
http://students.depaul.edu/~yourlogin/it130/hw5/
Important: set the permission for the folder hw5
so that it is readable by all users (public). This will allow the contents of
the folder (your pages for the above exercises) to be listed as links. Test the
URL in your browser to make sure that all of the pages and other files you have
created for the assignment are visible and accessible.
Submit this URLvia Course Online
(type the URL into the comment box).
Please see the syllabus for the policy on
late assignments.
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