Printable View
I am VERY VERY NEW to JScript, I am wondering what is wrong with this code to make a 2 number adder:
var a = prompt("First Number:","");
var b = prompt("Second Number:","");
alert (a + " + " + b + " = " + (a + b))
It does everything but it just combines then number, like 2+6=26
HELLP!
Hi,
Use the ParseInt to convert the string to an integer and then use the eval method.
Code:var a = parseInt(prompt("First Number:",""));
var b = parseInt(prompt("Second Number:",""));
alert (a + " + " + b + " = " + eval(a + b));
...or just use eval()
Code:var a = eval(prompt("First Number:",""));
var b = eval(prompt("Second Number:",""));
alert (a + " + " + b + " = " + (a + b))
Superb ! carrying on from this
if i have 3 text boxes - left,center and right
what would the code be to add left and center values to present the answer in right ?
Any help is appreciated
visordown
This works in IE
I haven't tried it in NS
Code:
<HTML>
<HEAD>
<script language=JavaScript>
function addThem()
{
document.frm1.txt3.value=eval(document.frm1.txt1.value)+ eval(document.frm1.txt2.value)
}
</script>
</HEAD>
<BODY>
<form name=frm1>
<input name=txt1 size=4 onKeyup="addThem()">
<input name=txt2 size=4 onKeyup="addThem()">
<input name=txt3 size=4>
</form>
</BODY>
</HTML>
thankyou very much u r far too clever for your own good ;)
cheers a lot pal ! :) :) :)