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JavaScript - Grade Calculator Problem
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>
Similar Tutorialsi 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>
Hello, 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! Hey I've been working on my Spanish Clubs' website over the summer and I need some help when making this converter. I want to make it so when someone chooses a different country, it will change the answeres and do the equation in the text boxes and also if they change the numbers manually they will also do the equation. I've tried it out and it's making me go mad. PLEASE HELP! Here is the javascript code I made: Code: function calculatecountry()
{
var country = calculate.countrys.options[calculate.countrys.selectedIndex].text;
//===============================COUNTRIES====================================
if (countrys=="--Country--")
{
var usd1 = 0;
var other1 = 0;
}
if (countrys=="Argentina")
{
var usd1 = 0.2553;
var other1 = 1;
}
if (countrys=="Bolivia")
{
var usd1 = 0.14245;
var other1 = 1;
}
if (countrys=="Chile")
{
var usd1 = 0.0018;
var other1 = 1;
}
//================================EQUATIONS=====================================
var c1 = calculate.other.value;
var c2 = calculate.usd.value;
var ans1 = c1 * other1;
var ans2 = c2 * usd1;
calculate.usd.value = ans1;
calculate.other.value = ans2;
}
Here is the form code: Code:
<html><head><title></title>
<script type="text/javascript" src="js_money_calc.js"></script>
</head><body>
Converter
<form name="calculate">
<select name="countrys" onChange="calculatecountry()">
<option selected>--Country--</option>
<option>Argentina</option>
<option>Bolivia</option>
<option>Chile</option>
</select><p>
<input type="text" name="usd" onKeyUp="calculatecountry()" /> = <input type="text" name="other" onKeyUp="calculatecountry()" /></p>
</form>
</body></html>
Thanks. Hi, I am new to Javascript and I am having a problem with this calculator I am building. The purpose is to see if you will be able to go to prom. In a form you input 4 pieces of info. (1)How much money the ticket costs. (2)How much money your tuxedo costs. (3)How much money the dinner costs. (4)How much money you have. I have the calculator set up, and it is supposed to add together the ticket cost, tuxedo cost, and dinner cost, and subtract it from how much money you have. I finished the code, and I am getting no error at the bottom of the screen, but the calculator doesn't work. So, I guess it is a logic error. Here is the code and a link to the page: http://themusiccove.com/Documents/prom2010.htm <html> <head> <title>Prom 2010</title> <script LANGUAGE="JAVASCRIPT"> function prom(myform) { var ticket=document.Calculator.ticket.value var ticket=parseInt(ticket,10) if (isNaN(ticket)) { alert("Enter a number for the Ticket Cost.") document.Calculator.ticket.value="" document.Calculator.ticket.focus() } else { var tuxedo=document.Calculator.tuxedo.value var tuxedo=parseInt(tuxedo,10) if (isNaN(tuxedo)) { alert("Enter a number for the Tuxedo Cost.") document.Calculator.tuxedo.value="" document.Calculator.tuxedo.focus() } else { var dinner=document.Calculator.dinner.value var dinner=parseInt(dinner,10) if (isNaN(dinner)) { alert("Enter a number for the Dinner Cost.") document.Calculator.dinner.value="" document.Calculator.dinner.focus() } else { var money=document.Calculator.money.value var money=parseInt(money,10) if (isNaN(money)) { alert("Enter a number for how much money you have.") document.Calculator.money.value="" document.Calculator.money.focus() Calculate=money-(ticket+tuxedo+dinner) document.Calculator.answer.value=Calculate } } } } } </script> </head> <body bgcolor="ccffcc"> <img src="http://www.shop-direct.net/images/prom5.jpg" align="left" width="125" length="100"> <img src="http://www.packerpress.com/wp-content/uploads/2009/05/5301-men-tuxedo-jacket-b.jpg" align="right" width="125" length="100"> <h2><center>Prom Calculator</center><h2> <h4><center>Enter the data in the textboxes to see if you have enough money to go to prom.</center></h4> <Center><FORM Name="Calculator"> <table border="0"> <tr> <td><p align=right>Ticket Cost: </td> <td><Input Type="text" Name="ticket" value=" "></td> </tr> <tr> <td><p align=right>Tuxedo Cost: </td> <td><Input Type="text" Name="tuxedo" value=" "></td> </tr> <tr> <td><p align=right>Dinner Cost: </td> <td><Input Type="text" Name="dinner" value=" "></td> </tr> <tr> <td><p align=right>Your Money: </td> <td><Input Type="text" Name="money" value=" "></td> </tr> <tr> <td><p align=right>Profit/Loss: </td> <td><Input Type="text" Name="answer" value=" "></td> </tr> <tr align="center"> <td colspan=2><Input Type="Button" Value="Calculate" Onclick="prom(Calculator)"></tr> <tr align="center"><td colspan=2><Input Type="Reset"></td></tr> </table></center> <SCRIPT LANGUAGE="JAVASCRIPT"> <!--Hide from old browsers //--> </SCRIPT> <CENTER><HR Width="75%"></CENTER> <SCRIPT LANGUAGE="JAVASCRIPT"> <!--Hide from old browsers var tNow = new Date() var tlocDate = tNow.toLocaleString() var tDate = tlocDate.substring(0,23) document.write("<H2><CENTER>Welcome, today is "+tDate+"</CENTER></H2>") //--> </SCRIPT> <SCRIPT LANGUAGE="JAVASCRIPT"> <!--Hide from old browsers document.write("<H4><CENTER>This document was last modified "+document.lastModified+"</CENTER></H4>") //--> </SCRIPT> </body> </html> I am a student trying to complete this assignment. Any assistance you can give me is greatly appreciated. My code is inserted below. This is calculator program that I have gotten stuck on. Here is where I think I am at: The program is now taking the 1st number entered displaying it and storing it in the variable "memory". Operation (+,-,*,/) is added to the memory in function action1() but then when the second number is entered it replaces memory with the second number. How can I get the variable memory to the whole string of 1st number,action, 2nd number? Also once I do get that working correctly: Wouldn't eval(document.calculator.display.value= memory) in my HTML for the "=" give me the calculation. ( if I could figure out how to have memory store the 1st number and action1 and 2nd number all together) Or would eval(document.calculator.display.value) do it for me. //////////////////////////////////////////////////////////////////////////////////// <html> <head> <title> Calculator</title> </head> <script type = "text/javascript" src="calculator2.js"></script> <body> <center>Calculator<br> To use this calculator, CLICK a number, then an ACTION, then another number, then the EQUALS button. <br> Press "C" when ready to start over. <br> The "N" button makes your previous number a negative.<br></center> <form name="calculator"> <table border = "1" align ="center"> <tr> <td ><input type = "text" size = 26 name = "display" id = ""/></td> </tr> <tr ><br /> <!-- first row of calculator --> <td> <input type = "button" value = " 7 " id = "" onclick="newstring('7')"> <input type = "button" value = " 8 " id = "" onclick="newstring('8')"/> <input type = "button" value = " 9 " id = "" onclick="newstring('9')"> <input type = "button" value = " / " id = "" onclick="action1('/')"> </td> </tr> <tr ><br /> <!-- second row of calculator --> <td> <input type = "button" value = " 4 " id = "" onclick="newstring('4')"> <input type = "button" value = " 5 " id = "" onclick="newstring('5')"> <input type = "button" value = " 6 " id = "" onclick="newstring('6')"> <input type = "button" value = " * " id = "" onclick="action1('*')"> </td> </tr> <tr ><br /> <!-- third row of calculator --> <td> <input type = "button" value = " 1 " id = "" onclick="newstring('1')"> <input type = "button" value = " 2 " id = "" onclick="newstring('2')"> <input type = "button" value = " 3 " id = "" onclick="newstring('3')"> <input type = "button" value = " - " id = "" onclick="action1('-')"> </td> </tr> <tr ><br /> <!-- forth row of calculator --> <td> <input type = "button" value = " 0 " id = "" onclick="newstring('0')"> <input type = "button" value = " N " id = "" onclick="newstring('N')"> <input type = "button" value = " = " id = "" onclick="eval(document.calculator.display.value= memory)"> <input type = "button" value = " + " id = "" onclick="action1('+')"> </td> </tr> <tr ><br /> <!-- fifth row of calculator --> <td> <input type = "button" value = "   " id = ""> <input type = "button" value = "   " id = ""> <input type = "button" value = "   " id = ""> <input type = "button" value = " C " id = "" onclick="clearCalc()"> </td> </tr> </table> </body> </form> </html> /////////////////////////////////////////////////////////////////////////////////////// javascript memory = "0"; current = 0; operation =0; function newstring(digit) { current=document.calculator.display.value; if (digit >= 0 && digit <=9) { if(current==0) { current = digit; } else { current = current + digit; } } document.calculator.display.value=current; memory= current; } function action1(newaction) { operation = document.calculator.display.value; if (newaction == '+') { operation = newaction; } else if (newaction == '-') { operation = newaction; } else if (newaction == '*') { operation = newaction; } else if (newaction == '/') { operation = newaction; } memory= memory + operation; document.calculator.display.value=memory ; } function clearCalc() { document.calculator.display.value=null; num1= null; num2 = null; lastaction= null; action = null; } hi guys, im haveing a bit of a problem with this script - its a ratio calculator. can you guys see whats the problem? Heres the java script eg. when you write 86708 kills and 53240 death the K/D calc should show this: 1,62 = 86 (-86) 1,64 = 389 1,70 = 3582 but it doesent???? heres the code guys : <HTML> <HEAD> <script type="text/javascript"> function find_ratio() { var x = document.getElementById("x1").value; var y = document.getElementById("y1").value; var gcd=calc(x,y); var r1=x/gcd; var r2=y/gcd; var ratio = r1 / r2; document.getElementById("res").value = ratio.toFixed(2); var death1 = r1 / r2; death1 = Math.floor(ratio * 100) / 100; document.getElementById("death1").value = death1.toFixed(2); var kill1 = r1 / r2; kill1 = Math.ceil(ratio * 100) / 100; document.getElementById("kill1").value = kill1.toFixed(2); var kill3 = r1 / r2; kill3 = Math.ceil(ratio * 10) / 10; document.getElementById("kill3").value = kill3.toFixed(2); var deathcalc = (death1 - 0.00401) * r2; var death2 = deathcalc - r1; document.getElementById("death2").value = death2.toFixed(0); var killcalc1 = (kill1 - 0.00401) * r2; var kill2 = killcalc1 - r1; document.getElementById("kill2").value = kill2.toFixed(0); var killcalc2 = (kill3 - 0.00401) * r2; var kill4 = killcalc2 - r1; document.getElementById("kill4").value = kill4.toFixed(0); } function calc(n1,n2) { var num1,num2; if(n1 < n2){ num1=n1; num2=n2; } else{ num1=n2; num2=n1; } var remain=num2%num1; while(remain>0){ num2=num1; num1=remain; remain=num2%num1; } return num1; } function isInteger(s,iid) { var i; s = s.toString(); for (i = 0; i < s.length; i++) { var c; if(s.charAt(i)==".") { } else { c = s.charAt(i); } if (isNaN(c)) { alert("Given value is not a number"); document.getElementById(iid).value=""; return false; } } return true; } </script> <style type="text/css"> .style1 { width: 90px; } .style2 { height: 55px; } #x1 { text-align: center; } #y1 { text-align: center; } </style> </HEAD> <BODY> <table cellspacing=0 cellpadding=2 style="border:1px solid green; width: 250px; height: 217px;" align=center> <tr><td class="style1">Kills:</td><td style="text-align: center"><input type="text" id="x1" onkeyup="isInteger(this.value,this.id);"></td></tr> <tr><td class="style1">Death:</td><td style="text-align: center"><input type="text" id="y1" onkeyup="isInteger(this.value,this.id);"></td></tr> <tr><td colspan=2 align=center class="style2"><input type="button" value="Lad magien flyde" onclick="find_ratio()"></td></tr> <tr><td class="style1">Ratio:</td><td style="text-align: center"><input type="text" readonly id="res" style="font-weight:bold; width: 65px; text-align: center;" size="6"> = <input type="text" readonly id="res2" style="font-weight:bold; width: 65px; text-align: center;" size="6"></td></tr> <tr><td class="style1">Deaths to:</td><td style="text-align: center"> <input type="text" readonly id="death1" style="font-weight:bold; width: 65px; text-align: center;" size="6"> = <input type="text" readonly id="death2" style="font-weight:bold; width: 65px; text-align: center;" size="6"></td></tr> <tr><td class="style1">Kills to:</td><td style="text-align: center"> <input type="text" readonly id="kill1" style="font-weight:bold; width: 65px; text-align: center;" size="6"> = <input type="text" readonly id="kill2" style="font-weight:bold; width: 65px; text-align: center;" size="6"></td></tr> <tr><td class="style1">Kills to:</td><td style="text-align: center"> <input type="text" readonly id="kill3" style="font-weight:bold; width: 65px; text-align: center;" size="6"> = <input type="text" readonly id="kill4" style="font-weight:bold; width: 65px; text-align: center;" size="6"></td></tr></table> </BODY> </HTML> 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. Hi all. I'm having a bit of a problem returning a different value each time a different button is pressed for calculator. What am I doing wrong? Code: <script>
function calc(btname){
for(var x=0;x<=11;x++){
if(x==0){
btname="zero";
}else if(x==1){
btname="one";
}else if(x==2){
btname="two";
}else if(x==3){
btname="three";
}else if(x==4){
btname="four";
}else if(x==5){
btname="five";
}else if(x==6){
btname="six";
}else if(x==7){
btname="seven";
}else if(x==8){
btname="eight";
}else if(x==9){
btname="nine";
}else if(x==10){
btname="multiply";
}else if(x==11){
btname="divide";
}
if('document.forms.test.'+btname+'.onClick'){
alert(btname);
}
}
}
function scalc(){
var sign="";
var btname="";
document.write('<form name="test">');
for(var x=0;x<=11;x++){
if(x==0){
btname="zero";
}else if(x==1){
btname="one";
}else if(x==2){
btname="two";
}else if(x==3){
btname="three";
}else if(x==4){
btname="four";
}else if(x==5){
btname="five";
}else if(x==6){
btname="six";
}else if(x==7){
btname="seven";
}else if(x==8){
btname="eight";
}else if(x==9){
btname="nine";
}else if(x==10){
btname="multiply";
sign = "*";
}else if(x==11){
btname="divide";
sign = "/";
}
if(x<10){
document.write('<input type="button" size="30" name="'+btname+'" value="'+x+'" onClick="calc(this);"> ');
}else if(x>9 && x<12){
document.write('<input type="button" size="30" name="'+btname+'" value="'+sign+'" onClick="calc(this);"> ');
}
if(x==2 || x == 5 || x == 8){
document.write('<br>');
}
}
document.write('</form>');
}
scalc();
</script>
ANY help is GREATLY appreciated! I'm using the following code to calculate an age from the given date of birth however it works for some DOB's, gives wrong answers for some and undefined for others, can someone help me? Code:
<div style="font-size:13px; font-family:Verdana;">
<script>
<!--
/*Darren McGrady */
var current= new Date()
var day = current.getDate()
var month = current.getMonth() + 1
var year = current.getFullYear()
var a = 29
var b = 12
var c = 1980
var age
if (month < b)
age = (year-c)-1
if ((month == b) && (day < a))
age = (year-c)-1
else
age = year-c
document.write(age);
//-->
</script>
</div>
Below is the code for a calculator using script. can one help me to explain me the colored line?? <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <title>Untitled Document</title> </head> <body> </body> <script language="javascript" type="text/javascript"> function multiply() { a=Number Quote: Quote: (document.calculator.number1.value) ; b=Number(document.calculator.number2.value); c=a*b; document.calculator.total.value=c; } function addition(){ a=Number(document.calculator.number1.value); b=Number(document.calculator.number2.value); c=a+b; document.calculator.total.value=c; } function subtraction(){ a=Number(document.calculator.number1.value); b=Number(document.calculator.number2.value); c=a-b; document.calculator.total.value=c; } function division(){ a=Number(document.calculator.number1.value); b=Number(document.calculator.number2.value); c=a/b; document.calculator.total.value=c; } function modulus(){ a=Number(document.calculator.number1.value); b=Number(document.calculator.number2.value); c=a%b; document.calculator.total.value=c; } </script> </head> <body> <form name="calculator"> Number 1: <input type="text" name="number1"> Number 2: <input type="text" name="number2"> Get Result: <input type="text" name="total"> <input type="button" value="ADD" onclick="javascript:addition();"> <input type="button" value="SUB" onclick="javascript:subtraction();"> <input type="button" value="MUL" onclick="javascript:multiply();"> <input type="button" value="DIV" onclick="javascript:division();"> <input type="button" value="MOD" onclick="javascript:modulus();"> </form> </body> </html> Hi , this is my bmi calculator script <HEAD> <script type="text/javascript"> <!-- Begin script of spillo3000 function calculateBMI() { var weight = eval(document.form.weight.value) var height = eval(document.form.height.value) var height2 = height / 100 var BMI = weight / (height2 * height2) if(weight == "" || isNaN(weight) || height2 == "" || isNaN(height2)) { alert("inserisci un valore"); return; } else { document.form.BodyMassIndex.value=custRound(BMI,1); if(BMI < 18.5) { document.getElementById('feedback').innerHTML = 'Underweight '; }else if(BMI >=18.5 && BMI < 29.9) { document.getElementById('feedback').innerHTML = 'Normal '; }else if(BMI > 29.9) { document.getElementById('feedback').innerHTML = 'Overweight '; } } } function custRound(x,places) { return (Math.round(x*Math.pow(10,places)))/Math.pow(10,places) } function resetAll(){ document.getElementById('feedback').innerHTML=""; return true; } // End --> </script> </HEAD> <!-- --> <BODY> <div align="left"> <form name="form" id="form"> <input type="Text" name="weight" size="4"> Peso (Kg)<br> <input type="Text" name="height" size="4"> Altezza (Cm)<br> <input type="Text" name="BodyMassIndex" id="BodyMassIndex" size="4"> BMI<br> <input type="Text" name="feedback" id="feedback" style="padding:10px 0 20px 0; border:none; font-weight:600; color:#555555; font-family:verdana;" ><br> <input type="button" style="font-size: 8pt" value="Calcola" onClick="calculateBMI()" name="button"> <input type="reset" style="font-size: 8pt" value="Reset" onclick="resetAll()" name="button"> </form> </div> <!-- Script Size: I would want to show writing that it says if is in overweight, norms or I underweigh, but the script does not work. could someone help me? please How could i make a calculator that changes three values when a vertex on an image moves. Example : When a point moves on the triangle it changes the cost quality and time. I have this start and need the meat for the concept to work.<!doctype html> <html> <head> <meta charset="utf-8"> <title>Untitled Document</title> </head> <body> <p><img src="Assets/Project-triangle.svg.png" width="500" height="492" alt=""/>-------------------------------------------<img src="Assets/triangle.gif" width="224" height="210" alt=""/></p> <p> <label for="textfield">Cost :</label> <input type="text" name="textfield" id="textfield"> <label for="textfield2"> Time :</label> <input type="text" name="textfield2" id="textfield2"> <label for="textfield3">Quality :</label> <input type="text" name="textfield3" id="textfield3"> </p> <p> </p> </body> </html> Help would be greatly appreciated! I have a formula done in PHP. Lets say it's PHP Code: $sum = $_POST['one'] + $_POST['two']; I have 2 textboxes, one named "one", the other named "two". I want the page to also display the answer under the text boxes but it updates in real time when you input a value into the textboxes. How would I do that? Hi all master and expert coders I am working on a calculator which using the instructor's codes from the school. The problem that I having right now is the operator. I have successfully complete only the addition, but could not manage on subtraction and the rest operator. I hope experienced codes would help me out on this. Below is my codes. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head> <script type="text/javascript"> function calculate() { var value1 = parseInt(validate(document.getElementById("value1").value)); var value2 = parseInt(validate(document.getElementById("value2").value)); radioButtonCheck(); checkboxCheck(); dropDownListCheck(); document.getElementById("result").value = addition(value1, value2); document.getElementById("result").value = subtraction(value1, value2); document.getElementById("result").value = multiplication(value1, value2); document.getElementById("result").value = division(value1, value2); } function validate(value) { if (value == null || value == "") { alert("Required Field"); return 0; } else if (isNaN(value)) { alert("Must be a number"); return 0; } else return value; } function addition(value1, value2){ return value1 + value2; } // trying to use the same addition return statement but fail. function radioButtonCheck() { if ((document.getElementById("radio1").checked == false) && (document.getElemtById("radio2").checked == false)) { alert("Please select a radio button"); valid = false; } } function checkboxCheck() { if ((document.getElementById("cbox1").checked == false) && (document.getElementById("cbox2").checked == false)) { alert("Please select a checkbox"); valid = false; } } function dropDownListCheck() { if ((document.getElementById("ddlOperator").selectedIndex == 0)) { alert("Please select a operator"); valid = false; } } </script> <title>Calculator By Alsus</title> </head> <body> <h2>Calculator</h2> <table border = "1"> <tr> <td>Value 1:</td> <td><input type="text" id="value1" name="value1" /></td> </tr> <tr> <td>Value 2:</td> <td><input type="text" id="value2" name="value2" /></td> </tr> <tr> <td>Operator:</td> <td><input type="text" id="Operator" name="Operator" /></td> </tr> <tr> <td><input type="radio" id="radio1" name="radio1" value="radio1" />Radio1<br /></td> <td><input type="radio" id="radio2" name="radio2" value="radio2" />Radio2<br /></td> </tr> <tr> <td><input type="checkbox" id="cbox1" name="cbox1" value="cbox1" />Checkbox 1<br /></td> <td><input type="checkbox" id="cbox2" name="cbox2" value="cbox2" />Checkbox 2<br /></td> </tr> <tr> <td> <select id="ddlSelect"> <option value="+">+</option> <option value="-">-</option> <option value="*">*</option> <option value="/">/</option> </select> </td> <td> </td> </tr> <tr> <td>Result:</td> <td><input type="text" id="result" name="result" /></td> </tr> </table> <input type="submit" id="btn_sub" name="btn_sub" value="Submit" onclick="calculate()" /> <input type="reset" id="btn_res" name="btn_res" value="Reset" /> </body> </html> I have my first ever scholastic JS assignment and so far it's felt nearly impossible to get a grip on how to do it. I've gone through the W3c tutorials entirely 3 times now and still, nothing is clicking mentally. Generally I do better if I can reverse engineer already written code but I can't find anything similar enough to this on the net to figure it out. The assignment is to create a grade averages calculator as seen in this pictu Along with this starter code: Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Assignments score calculator</title>
<style type="text/css">
<!--
.score {
width: 30px;
}
-->
</style>
</head>
<body>
<h1>Assignments score calculator</h1>
<form id="calculator" name="calculator" method="post" action="">
<p>Enter your Name:
<label for="firstname"></label>
<br />
<input type="text" name="firstname" id="firstname" />
<p>
<label for="A1">Assignment #1 sco </label>
<input name="A1" type="text" class="score" id="A1" maxlength="3" /><br />
<label for="A2">Assignment #2 sco </label>
<input name="A2" type="text" class="score" id="A2" maxlength="3" /><br />
<label for="A3">Assignment #3 sco </label>
<input name="A3" type="text" class="score" id="A3" maxlength="3" />
<p>
<label for="button"></label>
<input type="submit" name="Submit" id="Submit" value="Submit" xx="doCalculation(this.form.firstname.value,this.form.A1.value,this.form.A2.value,this.form.A3.value)" />
</form>
</body>
</html>
I understand what I need to do, just not the syntax to do it. Any help would be appreciated. Sorry for newbiness. I'm currently revamping a website that was written in aspx. The problem i'm having is that the webpage is moving to a hosting company that doesn't support asp. I'm wanting to rebuild the calculator in javascript, however I have no javascript experience. I can figure some parts of the code out, however I don't really have time to learn it, and was wondering if someone would be willing to help. The site i'm trying to change is: http://sunflowertitle.com/ratecalculator.aspx It shouldn't be that difficult to rebuild as its not a detailed calculator. I have all the original files if anyone needs them, i've been working on this for awhile and i'm to the point i'd be willing to pay someone to build it. Hi there, me again. Need help with this bit of code. The script itself I got from the JS Source, and modified it myself a bit so that instead of the user inputting their DOB via a prompt box, it could be entered via dropdown lists. I attempted to do this, but have come across a problem. For some reason, the result always (or at least, that's what it looks like to me) appears to be the array index element of [4], i.e. Friday. Not really sure why this is, but no matter what date is entered out of the example dates shown below in the HTML, the result is always Friday. Double-checked on another similiar calculator script online, and sure enough, the results are wrong. So it's a problem with my script. Except I can't identify it. So any help from Old Pedant/Philip M, or whoever else on the forum has the patience to help me , would be much appreciated. Code: <script type="text/javascript" language="javascript">
function findDay() {
var arr = new Array();
arr[0] = "Monday";
arr[1] = "Tuesday";
arr[2] = "Wednesday";
arr[3] = "Thursday";
arr[4] = "Friday";
arr[5] = "Saturday";
arr[6] = "Sunday";
var selectdate = document.getElementById("selectdate").selectedIndex;
var selectmonth = document.getElementById("selectmonth").selectedIndex;
var selectyear = document.getElementById("selectyear").selectedIndex;
var birthday = new Date(selectdate + selectmonth + selectyear);
var day = birthday.getDay();
document.getElementById("div1").innerHTML = "You were born on a " + arr[day] + "!"
}
</script>
Code: <html> <h1>Day Of The Week?</h1> Input your date of birth, and click the Go button to find out what day of the week you were born on. <hr/> <form style="text-align: center;"> <select id="selectdate"> <option>1</option> <option>2</option> <option>3</option> </select> <select id="selectmonth"> <option>January</option> <option>February</option> <option>March</option> </select> <select id="selectyear"> <option>1995</option> <option>1996</option> <option>1997</option> </select> <br/> <br /> <input align="middle" type="button" value="Go" onclick="findDay()"> </form> <div id="div1"></div> </html> aaaaaa
This is what I have so far, but now I am stuck. My instructor wants the output value (Number Set C) to include Number Set A and Number Set B. For instance, if Number Set A is "10" and you want to add Number Set B whose value is also "10", my instructor wants Number Set C to say "10 + 10 = 20". Where am I going wrong, and what is the easiest way I can make this work while making as little changes as possible? Most of the code is what my instructor requires us to use. Code: <HTML>
<HEAD>
<TITLE>COMSC-100-1241 - Assignment #8 - Introducing "if" Logic - Programming Your Own Calculator</TITLE>
<SCRIPT LANGUAGE="text/JavaScript">
function Go(code){
var a
var b
var c
var x
a = parseFloat(document.getElementById("a").value);
b = parseFloat(document.getElementById("b").value);
if (code == 0){
x = a + b
c = a + " + " + b + " = " + x
}
if (code == 1){
x = a - b
c = a + " - " + b + " = " + x
}
if (code == 2){
x = a * b
c = a + " * " + b + " = " + x
}
if (code == 3){
x = a / b
c = a + " / " + b + " = " + x
}
document.getElementById("c").value = c;
}
</SCRIPT>
</HEAD>
<BODY>
<TABLE BORDER="1" WIDTH="500" ALIGN="center">
<TR>
<TD>
<DIV ALIGN="left">
<FORM NAME="calculator">
<B>Instructions: </B> Type a number in the box for "Number Set #1". Then input a <I>second</I> number in the box for "Number Set #2". Click the "Calculate" button, and the sum of those two numbers will appear in the box for "Number Set #3".
<BR>
<BR>
<B>Input Values: </B>
<BR>
<B>Number Set A:</B> <INPUT ID="a">
<BR><BR>
<B>Number Set B:</B> <INPUT ID="b" >
<BR><BR>
<INPUT TYPE="Submit" VALUE="Add" OnClick="Go(0);">
<INPUT TYPE="Submit" VALUE="Subtract" OnClick="Go(1);">
<INPUT TYPE="Submit" VALUE="Multiply" OnClick="Go(2);">
<INPUT TYPE="Submit" VALUE="Divide" OnClick="Go(3);">
<BR><BR>
<B>Output Value: </B>
<BR>
<B>Number Set C:</B> <INPUT ID="c" SIZE="50">
</FORM>
</DIV>
</FORM>
</TD>
</TR>
</TABLE>
</BODY>
</HTML>
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