<html>
<head>
<title> Javascript Assignment 3 </title>
<SCRIPT language = JavaScript>
function sum() {
A = document.frmOne.txtFirstNumber.value
B = document.frmOne.txtSecondNumber.value
C = Number(A) Number(B);
document.frmOne.txtThirdNumber.value = eval(C)
}
function minus() {
A = document.frmOne.txtFirstNumber.value
B = document.frmOne.txtSecondNumber.value
C = (A - B)
document.frmOne.txtThirdNumber.value = C
}
function mul() {
A = (document.frmOne.txtFirstNumber.value)
B = (document.frmOne.txtSecondNumber.value)
C = (A * B)
document.frmOne.txtThirdNumber.value = C
}
function divd() {
A = document.frmOne.txtFirstNumber.value
B = document.frmOne.txtSecondNumber.value
C = (A / B)
document.frmOne.txtThirdNumber.value = C
}
function concat() {
A = document.frmOne.txtFirstNumber.value
B = document.frmOne.txtSecondNumber.value
C = (A B)
document.frmOne.txtThirdNumber.value = C
}
</script>
</head>
<body>
<script language="Javascript">
document.write(" Question no 1: ");
var num =10
var name="Computer"
var c= num name
document.write(" number is " num "<br/>");
document.write(" String is " name "<br/>");
document.write(" sum of number and String is : " c "<br/>");
var num1=10
var num2=15
var num3=5
var sum=num1 num2;
alert(" sum of two number " sum);
mul = (num1*num2) num3/100;
document.write(" number1 is " num1 "<br/>");
document.write(" number2 is " num2 "<br/>");
document.write(" number3 is " num3 "<br/>");
document.write(" result is " mul "<br/>" );
var str1="Common Wealth";
var str2="Games";
var res=str1 " " str2;
document.write("String 1 is " str1 "<br/>");
document.write("String 2 is " str2 "<br/>");
document.write("Concatenation of two string is " res "<br/>");
alert("Concatenating String with number " (res 2010));
document.write("Concatenating String with number " (res 2010) "<br/>");
</script>
<br/>
<FORM NAME = frmOne>
Number One: <INPUT TYPE = Text NAME = txtFirstNumber SIZE = 5 value ="">
Number Two: <INPUT TYPE = Text NAME = txtSecondNumber SIZE = 5 value ="">
<P>
Total: <INPUT TYPE = Text NAME = txtThirdNumber SIZE = 6 value = " "></p>
<P>
<Input Type = Button NAME = b1 VALUE = "Add Numbers" onClick = sum()>
<Input Type = Button NAME = b2 VALUE = "Subtract Numbers" onClick = minus()>
<Input Type = Button NAME = b3 VALUE = "Multiply Numbers" onClick = mul()>
<Input Type = Button NAME = b4 VALUE = "Divide Numbers" onClick = divd()>
<Input Type = Button NAME = b5 VALUE = "Concatenate Numbers" onClick = concat()>
</p>
</FORM>
</body>
</html>
This code is working fine for minus or division but not able to do sum or multiply on clicking on buttons
please help
