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JavaScript - Student Grade Help.
i wold like to get this working. when a user enters 4 grades into the text boxes. it would give them the Avg Grade and also what Mark they got,
and if they failed one out put the module they most Repeat and if they passed all out put a smiley face.. This is what i have so far.. Code:
function compute() {
var c = document.getElementById("c").value;
var computer = document.getElementById("computer").value;
var web = document.getElementById("web").value;
var math = document.getElementById("math").value;
document.getElementById("cost").value =
totalCost = (c * 100 + computer * 100 + web * 100 + math * 100 ) /4;
if(cost >=93)
alert(" You got an A+")
else
if((cost >=85)&(grade <93))
alert(" You got an A")
else
if((cost >=78)&(grade <85))
alert(" You got an B")
else
if((cost >=60)&(grade <78))
alert(" You got an C")
else
if((cost >=40)&(grade <60))
alert(" You got an D")
else
if(cost <40)
alert(" You Failed this Module")
</script>
</head>
<body>
<form method="get" action="" onsubmit='return formValidator()' >
<fieldset id="personalInfo">
<h3> Student Results </h3>
<!-- A bordered table for item orders -->
<table border = "border">
<!-- First, the column headings -->
<tr>
<th> Module Name </th>
<th> Pass Mark </th>
<th> Final Mark </th>
</tr>
<!-- Now, the table data entries -->
<tr>
<th> C++ </th>
<td> 40 % </td>
<td> <input type = "text" id = "c"
size ="10" /> </td>
</tr>
<tr>
<th> Computer Systems </th>
<td> 40 % </td>
<td> <input type = "text" id = "computer"
size = "10" /> </td>
</tr>
<tr>
<th> Web Development </th>
<td> 40 % </td>
<td> <input type = "text" id = "web"
size = "10" /></td>
</tr>
<tr>
<th> Maths </th>
<td> 40 % </td>
<td> <input type = "text" id = "math"
size ="10" /> </td>
</tr>
</table>
<!-- Button for precomputation of the total cost -->
<p>
<input type = "button" value = "Total Grade"
onclick = "compute();" />
<input type = "text" size = "5" id = "cost"
onfocus = "this.blur();" />
</p>
</fieldset>
</p>
<input type='submit' value='Check Form' />
</form>
</body>
</html>
Similar TutorialsHello, I'm new here and a newbie to the world of java script. I am taking a CIT class and we just moved on to java script which i am having trouble with. My assignment is to calculate the average, number of passed, and number of failed grades according to this list (65, 80, 85, 55, 90, 70, 62, -1) where it terminates at -1 and the passing grade is >=70. Any help is appreciated! I have this project i have to complete for class, that i cant figure out. this is what the project says: Prompt the user for the grades of 10 students with one prompt for each grade with the prompting text being: "Enter grade between 1 and 10 for student n:" where n varies from 1 to 10. If the grade input is not between 1 and 10, please prompt again for the grade. Once the user is done, it prints a report telling you the grade of each individual student and the average of the ten grades. The individual student grade should be in different lines with the text "Grade for student n is x". The average should also be in a different line with the text "Average grade is y". The average grade should not be rounded off. my problem is i cant figure out how to write each individual grade (from 1 through 10), and display it on the page. i have this code from a similar project, i tried to ammend it for this code but i always end up ruining it any tips on how to display each grade (1-10)? or how to verify that the user only enters grades between 1 and 10 Code: <html xmlns = "http://www.w3.org/1999/xhtml">
<head>
<title>Class Average Program: Sentinel-controlled Repetition</title>
<script type = "text/javascript">
<!--
var total; // sum of grades
var gradeCounter; // number of grades entered
var grade; // grade typed by user (as a string)
var gradeValue; // grade value (converted to integer)
var average; // average of all grades
// Initialization phase
total = 0; // clear total
gradeCounter = 0; // prepare to loop
// Processing phase
// prompt for input and read grade from user
grade = window.prompt(
"Enter Integer Grade, -1 to Quit:", "0" );
// convert grade from a String to an integer
gradeValue = parseInt( grade );
while ( gradeValue != -1 )
{
// add gradeValue to total
total = total + gradeValue;
// add 1 to gradeCounter
gradeCounter = gradeCounter + 1;
// prompt for input and read grade from user
grade = window.prompt(
"Enter Integer Grade, -1 to Quit:", "0" );
// convert grade from a String to an integer
gradeValue = parseInt( grade );
} // end while
// Termination phase
if ( gradeCounter != 0 )
{
average = total / gradeCounter;
// display average of exam grades
document.writeln(
"<h1>Class average is " + average + "</h1>" );
} // end if
else
document.writeln( "<p>No grades were entered</p>" );
// -->
</script>
</head>
<body>
<p>Click Refresh (or Reload) to run the script again</p>
</body>
</html>
I'm doing a correspondence course on javascript, but the terminology is giving me up-hill and after hour of battling, my Javascript was just a mess. could someone help me with the javascript function. My instruction reads: "Create a web page with 5 text boxes. Assign to each text box's value attribute a value of zero. Add to each of the text boxes an onchange event handler that calls a function named calcAvg() and passes to the function the value of that text box by referencing it's document object, form name, and name and value attributes. Within the calcAvg() function, pass the five parameters to another function, named performCalc(), and assign the returned value to a variable named calcResult, then place the returned value in to another text box with a name averageResult. In the performCalc() function, calculate the average of the five numbers (by adding the five numbers and then dividing the total by 5), then return the result to the calcAvg() function. When you preform the calculation, use the parseInt() function to insure that the passes values are calculated as numbers." Please assist be as kind as to assist me with this project so I can use it as reference to the following projects that follow on the foundation of this one... My code so far; Code: <!DOCTYPE html PUBLIC "-//W3C/DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Calculate average</title>
<script type="text/javascript">
/*<![CDATA[*/
/*]]<*/
</script>
</head>
<body>
<h1>Calculating averages</h1>
<table>
<tr>
<td>
<tr>
<td>Value 1<br/></td>
<td>
<input type="text" name="valueOne" size="6" value="0" onchange="calcAvg()" /></td>
</tr>
<tr>
<td>Value 2<br/></td>
<td>
<input type="text" name="valueTwo" size="6" value="0" onchange="calcAvg()" /></td>
</tr>
<tr>
<td>Value 3<br/></td>
<td>
<input type="text" name="valueThree" size="6" value="0" onchange="calcAvg()"/></td>
</tr>
<tr>
<td>Value 4<br/></td>
<td>
<input type="text" name="valuefour" size="6" value="0" onchange="calcAvg()"/></td>
</tr>
<tr>
<td>Value 5</td><br/>
<td>
<input type="text" name="valueFive" size="6" value="0" onchange="calcAvg()"/></td>
</tr>
</td>
</tr>
</table>
<form action="" name="averageResult" >
<p>The average of the 5 numbers:
<input type="text" name="cost" size="5" value="0"
style="border-style: none; border-color:inherit; border-width:medium; background-color: Transparent" text="0"/></p>
</form>
</body>
</html>
var suitArray = ["Hearts","Diamonds","Clubs","Spades"]; var faceArray = ["Ace", - Pastebin.com Doing a school assignment and Im totally stumped, google isnt any help nor is any of these textbooks. I need to tally up the playerhands and dealer hands and display the winner. I can get it to display the value of the current card. eg 7 of diamonds = 7 points but I cannot get it to tally up all the cards dealt. HI there.. Can you please give me code in JavaScript to create a student request form for book request from issue section of college Library.. Please help with code... Thanx in advance... Regards, I have a javascript program I'm trying to write for an introductory javascript class. The book is absolutely terrible and I've found I have a very weak grasp of how javascript functions work but I have an exam coming up and I'm getting desperate for help so I'm posting here hoping someone can help me get my head wrapped around this thing. The code is a simplified game of 21. It should randomly generate two cards for the dealer and two for the player, then display the total to the player and allow them to choose whether or not to take another card. It then decides who won. I'm including the script below: Code: <script type="text/javascript">
/*Declare Variables*/
var dealer = 0;
var player = 0;
var dealerPoints = 0;
var playerPoints = 0;
var rNum = 0;
var rPlayer1 = 0;
var rPlayer2 = 0;
var rDealer1 = 0;
var rDealer2 = 0;
var hitMe = " ";
function playGame()
{
while((playerPoints < 200) && (dealerPoints < 200))
{
/*Generate 2 random numbers between 2 and 11 for the player*/
rPlayer1 = Math.floor((Math.random() * 10 + 2))
rPlayer2 = Math.floor((Math.random() * 10 + 2))
rDealer1 = Math.floor((Math.random() * 10 + 2))
rDealer2 = Math.floor((Math.random() * 10 + 2))
/* Find Players Total*/
player = (rPlayer1 + rPlayer2);
/* Find Dealers Total*/
dealer = (rDealer1 + rDealer2);
/*Display player total*/
while ((player <= 21) && (dealer <= 21))
{
hitme = prompt("You drew a " + rPlayer1 + " card and a " + rPlayer2 + " card for a total of " + player + ". Do you want another card?");
if (hitMe == "yes")
{
rPlayer1 = Math.floor((Math.random() * 10 + 2));
player = (player + rPlayer1);
alert("You drew a " + rPlayer1 + " card for a total of " + player + ".");
}
if ((player <= 21) && (dealer > 21))
{
playerPoints = (playerPoints + player);
alert("Player Wins Hand");
}
if ((dealer <= 21) && (player > 21))
{
dealerPoints = (dealerPoints + dealer);
alert("Dealer Wins Hand");
}
if ((dealer > 21) && (player > 21))
alert("Tie, no points awarded");
}
if ((dealer <= 21) && (player <= 21))
{
if (dealer > player)
{
dealerPoints = (dealerPoints + dealer);
alert("Player total: " + playerPoints + ". Dealer points: " + dealerPoints + ". Dealer wins this hand.");
}
else if (player > dealer)
{
playerPoints = (playerPoints + player);
alert("Player total: " + playerPoints + ". Dealer points: " + dealerPoints + ". Player wins this hand!");
}
else
{
alert("Player total: " + playerPoints + ". Dealer points: " + dealerPoints + ". No one wins this hand.");
}
if (playerPoints >= 200)
{
alert("Player wins game!");
}
else if (dealerPoints >= 200)
{
alert("Dealer wins game!");
}
}
}
}
</script>
I am trying to create a grading calculator which will prompt the user to enter specific data and calculate the final grade. Here is code which I modified from an earlier post from Philip M. Code: <script type = "text/javascript">
var count = 1;
var total = 0;
var info= new Array();
var numGrades = 2;
for (var i = 0; i<numGrades; i++) {
var repeat = true;
while(repeat) {
var ans = parseInt (prompt("Enter grade between 0%-100% for Grade # "+ count,""));
if ((isNaN(ans)) || (ans == null) || (ans < 1) || (ans > 100)) {
alert ("You must enter a number between 0 and 100");
}
else {
repeat = false;
count ++;
info[i] = ans;
total = total + info[i];
}
}
}
var avg = total/info.length;
for (var i = 0; i < info.length; i++) {
document.write("Grade " + (i+1) + " Marks = " + info[i] + "<br>");
}
document.write("<br> Average Mark = " + avg.toFixed(2))
</script>
Here is the hard part: I am trying to make it so it will first ask how many grades to be calculated rather than a fixed grade. Then it will ask for grade 1 how many grades to be calculated for grade 1 and there percentage. Example: (alert box) How many overall grades to be calculated? User types 2 (alert box) Grade1 how many quizzes to be calculated? User types 2 (alert box) quiz 1 how much percent is this worth out of 100%? User types 80% (alert box) What grade did you receive? (alert box) quiz2 how much percent is this worth out of 100%? User types 20% (alert box) What grade did you receive? (alert box) Grade2 how many quizzes to be calculated? User types 1 (alert box) quiz 1 how much percent is this worth out of 100%? User would type 100% (alert box) What grade did you get? And then the results should look something like this: Grade 1 you got an 86% Grade 2 you got an 91 Final grade = ….. This is probably just a dumb way of doing this so anyway which will get the same result will be fine. I'm not sure if alert box is the wrong way to go. |
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