I've been coding a calculator but something doesn't work. I've been getting errors:
Uncaught ReferenceError: number is not defined
Here is my code:
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
alert("Calculator by Pavel (Dont block these popups, this website uses them)")
var a,b,result;
function setValues()
{
a=number(document.getElementById("a").value);
b=number(document.getElementById("b").value);
}
function sum()
{
setValues();
result= a+b;
alert("The answer is"+result);
}
</script>
</head>
<body>
<div>
<input id="a" type="text"/>
<input id="b" type="text"/>
<input type="button" onclick="sum()" value="sum"/>
</div>
</body>
</html>
I've been coding a calculator but something doesn't work. I've been getting errors:
Uncaught ReferenceError: number is not defined
Here is my code:
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
alert("Calculator by Pavel (Dont block these popups, this website uses them)")
var a,b,result;
function setValues()
{
a=number(document.getElementById("a").value);
b=number(document.getElementById("b").value);
}
function sum()
{
setValues();
result= a+b;
alert("The answer is"+result);
}
</script>
</head>
<body>
<div>
<input id="a" type="text"/>
<input id="b" type="text"/>
<input type="button" onclick="sum()" value="sum"/>
</div>
</body>
</html>
-
Of course you're getting that. I don't see a
number()declaration anywhere... – Aify Commented May 13, 2015 at 6:06 - Thank you for trying to help, but I got my answer already, I had mistakes in caps and lowercase, so next time i shall watch out for these mistakes.. – Pavel Commented May 13, 2015 at 15:39
3 Answers
Reset to default 3You have a mistake - JavaScript is case sensitive, so you must use Number
a=Number(document.getElementById("a").value);
Reference
<input id="a" type="text"/>
<input id="b" type="text"/>
<input id="1" type="button" onclick="sum()" value="sum"/>
<script type="text/javascript">
function sum()
{
setValues();
result= a+b;
alert("The answer is"+result);
// document.getElementById("ss").innerHTML = "Hello World";
// alert("hai");
}
var a,b,result;
function setValues()
{
a=Number(document.getElementById("a").value);
b=Number(document.getElementById("b").value);
}
</script>
Fiddle link
You can also use a=parseInt(...); in place of a=Number(); to take numbers only. Give it a Try!