How to add,subtract by using function and Switch statement in Javascript
How to create addition, subtraction by using function and switch statement.
<![CDATA[
<!--DOCTYPE html-->
<html>
<head>
<title></title>
<script>
alert("1. Addition "+"\n"+"2.Subtraction");
var n1,n2,res;
var ch=parseInt(prompt("select your choice:"));
// string (parseInt()=>convert into number)
function inp(){
n1=parseInt(prompt("Enter 1st nos:"));
n2=parseInt(prompt("Enter 2nd nos:"));
}
switch(ch){
case 1:
inp(); //calling
res=n1+n2;
alert("ADDITION (N1+N2):"+res);
break;
case 2:
inp(); //calling
res=n1-n2;
alert("SUBTRACTION (N1-N2):"+res);
break;
default:
alert("Invalid");
}
</script>
<body>
</body>
</html>
]]>
agyanadda
Author & Editor
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