function getMax()
CSS Codes
Junior Coders
I need a function to getMaximum number
function getMax()
Administrator
Get Maximum number in relation to what? A set of numbers fed in as parameters? You need to be more specific.
Junior Coders
Sorry, yes, lets say we have tree numbers.
Administrator
Well, there are many ways to do this. Here's a generic function that finds the largest number passed into its parameters, and returns it:
Usage example:Code:<script type="text/javascript"> function largestnumber(){ var largest=arguments[0] for (i=0; i<arguments.length; i++){ if (arguments[i]>largest) largest=arguments[i] } return(largest) } </script>
Code:alert(largestnumber(3, 5, 9, 1, 3, 2)) alerts 9 alert(largestnumber(23, 42, 12)) alerts 42
Elite Coders
But the most sensible is to use the Math.max method, which can take any number of arguments, and is native (that is, quicker).Originally Posted by ddadmin
MikeCode:var largest = Math.max(a, b, c, ...);
Administrator
Hehe you're right, completely forgot about Math.max(). Actually, I did think of it, but for some reason remember it as only accepting two parameters.
Junior Coders
What if I prompt the user to insert 3 numbers and then display the maximum number
I tried to do it but it's not working
Elite Coders
Could you please link to, or post, what you've tried so far.
Mike
Junior Coders
<html>
<head>
<title>Get Maximum Number</title>
<script type="text/javascript">
function getMax(num1, num2, num3){
var largest=arguments[num1, num2, num3]
for (i=0; i<arguments.length; i++){
if (arguments[i]>largest)
largest=arguments[i]
}
return(largest)
}
</script>
</head>
<body>
<h2>Get Maximum Number</h2>
<script language="JavaScript" type="text/javascript"><!--
var num1=prompt("Enter a number: ", "")
var num2=prompt("Enter another number: ", "")
var num3=prompt("Enter the third number: ", "")
var max= getMax(num1, num2, num3)
document.write("You entered: ", num1, ", ", num2, ", ", num3, ", and the Maximum number is: ", max)
// -->
</script>
</body>
</html>
Junior Coders
sorry I give the wrong script
here is the one I want you to see
<html>
<head>
<title>Get Maximum Number</title>
<script type="text/javascript">
function getMax(num1, num2,num3){
var largest=arguments[num1, num2, num3]
for (i=0; i<arguments.length; i++){
if ((num1>num2)&&(num1>num3))
largest=num1
else if((num2>num1)&&(num2>num3))
largest=num2
else
largest=num3
}
return(largest)
}
</script>
</head>
<body>
<h2>Get Maximum Number</h2>
<script language="JavaScript" type="text/javascript"><!--
var num1=prompt("Enter a number: ", "")
var num2=prompt("Enter another number: ", "")
var num3=prompt("Enter the third number: ", "")
var max= getMax(num1, num2, num3)
document.write("You entered: ", num1, ", ", num2, ", ", num3, ", and the Maximum number is: ", max)
// -->
</script>
</body>
</html>
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