Why no output?!

**lynny** · 10-15-2012 09:59 PM

I am creating a program using css, html, and javascript. It must convert numbers to roman numerals. I can't figure out why I just don't get any output. Please help!

Javascript

Code:

	function convert(d) {
	document.getElementById("output").innerText = value;
		
	if (!+d){
		alert('No data was input');
		return '';
		
	var	digits = String(+d).split("");
		key = ["","C","CC","CCC","CD","D","DC","DCC","DCCC","CM",
		       "","X","XX","XXX","XL","L","LX","LXX","LXXX","XC",
		       "","I","II","III","IV","V","VI","VII","VIII","IX"];
		roman = "";
		i = 3;
	
	while (i--)
		roman = (key[+digits.pop() + (i * 10)] || "") + roman;
		
	return Array(+digits.join("") + 1).join("M") + roman;
	}

html

Code:

.....other code above
<body>
	<div id="box">
		<form>
			 <p>
			 	CSE 3420.001<br/> 
			 	Program 3 - Javascript Application<br/>
			 	Don Retzlaff donr@unt.edu
			 </p>
		<input type="text" name="digit" id = "nums" value=""/>
		<!--	<input type="submit" name="button" value="Convert to Roman Numerals" -->
			<button onclick="convert(d)">convert to Roman Numerals</button>
		</form>
		<span id="output"></span>
	</div>
	
</body>

.......other code below

Thanks!

**Logic Ali** · 10-16-2012 08:38 AM

Code:

onclick="convert(d)"

Let's start here. What is d ?

**cbVision** · 10-16-2012 08:58 AM

onclick="convert(document.getElementById('nums'))"

**lynny** · 10-16-2012 10:34 AM

Originally Posted by Logic Ali

Let's start here. What is d ?

It's supposed to be the numbers that the user typed in.

Thread: Why no output?!

Thread Tools

Display

Why no output?!

Thread Information

Users Browsing this Thread

Bookmarks

Bookmarks

Posting Permissions