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Week 4

The document outlines a JavaScript program that converts a number between 0 and 999 into its word representation on an HTML page. It includes input validation to handle out-of-range numbers and non-numeric inputs, displaying appropriate messages for each case. The program utilizes arrays for ones, tens, and special cases to construct the word representation of the number entered by the user.

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Tharak Nath
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1 views3 pages

Week 4

The document outlines a JavaScript program that converts a number between 0 and 999 into its word representation on an HTML page. It includes input validation to handle out-of-range numbers and non-numeric inputs, displaying appropriate messages for each case. The program utilizes arrays for ones, tens, and special cases to construct the word representation of the number entered by the user.

Uploaded by

Tharak Nath
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Week 4: Design a HTML page with required JavaScript that takes a

number from one text field in the range of 0 to 999 and shows it
in another text field in words. If the number is out of range,
it should show “out of range” and if it is not a number, it
should show “not a number” message in the result box.

Program:
<html>
<head>
<script>
function conversion()
{
var d,m,str,str2;
str=" ";
var ones=new
Array("","One","Two","Three","Four","Five","Six","Seven","Eight"
,"Nine");
var tens=new
Array("","","Twenty","Thirty","Forty","Fifty","Sixty","Seventy",
"Eighty","Ninety");
var str2=new
Array("Ten","Eleven","Twelve","thirteen","fourteen","Fifteen","S
ixteen","Seventeen","Eighteen","Ninteen");
var n=document.getElementById("num").value;
if(n<0)
{
alert("Enter a Positive Number");
exit;
}
if(n>999)
alert("Out of Range");
if(n=="")
alert("Enter a Valid Number");
else if(n==0)
alert("Zero");
else
{
m=n.toString();
if(m.charAt(0)=='0'&&m.length>1)
{
m=m.substring(1,m.length)
}
x=m.length;
if(x==3)
{
var c2=parseInt(m.charAt(2));
var c1=parseInt(m.charAt(1));
var c0=parseInt(m.charAt(0));
if(c1==1)
{
str+=ones[c0]+" Hundred "+ str2[c2];
}
else
{
str+=ones[c0]+" Hundred "+
tens[c1]+ones[c2];
}
}
if(x==2)
{
var c1=parseInt(m.charAt(1));
var c0=parseInt(m.charAt(0));
if(c0==1)
{
str+= str2[c1];
}
else
{
str+= tens[c0]+ones[c1];
}
}
if(x==1)
{
var c0=parseInt(m.charAt(0));
str=ones[c0];
document.numberstring.wordstxt.value=str;
}

//document.numberstring.wordstxt.value=str;
document.getElementById("spell").value=str;
}
}
</script>
</head>
<body>
<h1 align="center"> Number to Words</h1>
<form name="numberstring">
Enter a number between 0 and 999
<input type="text" name="number" id="num"><br><br>
Number in Words
<input type= "text" name="wordstxt" id="spell"
disabled><br><br>
<input type="button" value ="convert"
onClick="conversion()">
<input type="reset">
</form>
</body>
</html>

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