Since I’ve been having lots of visits in my wxWidgets version of the Celsius to Fahrenheit converter, I’ve decided to prepare an online javascript version which lets you easily make the conversion.
Convert Celsius to Fahrenheit Online is licensed under the GNU GPL v3…
Here is the complete source code:
<script type="text/javascript">
// *****************************************************************************
// Description: Convert Celsius to Fahrenheit Online by NeoEGM
// Author: Ezequiel Miravalles
// Last modification: 16/08/2009
// URL: http://www.neoegm.com/tech/online-tools/convert-celsius-to-fahrenheit-online/
// *****************************************************************************
/*******************************************************************************
Copyright (C) 2009 Ezequiel Gastón Miravalles
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*******************************************************************************/
function isNumber(x)
{
return ( (typeof x === typeof 1) && (null !== x) && isFinite(x) ); //From http://snippets.dzone.com/posts/show/6937
}
function Round(number, digits)
{
return Math.round(number * Math.pow(10,digits)) / Math.pow(10, digits);
}
function CelsiusToFahrenheit(celsius, fahrenheit)
{
var num = celsius.value;
if (num == "" || !isNumber(Number(num)))
alert("Please type a number");
else
fahrenheit.value=Round((9/5)*num+32, 2);
}
function FahrenheitToCelsius(fahrenheit, celsius)
{
var num = fahrenheit.value;
if (num == "" || !isNumber(Number(num)))
alert("Please type a number");
else
celsius.value=Round((5/9)*(num-32), 2);
}
</script>
<table>
<tr>
<td>Celsius:</td>
<td><input type="text" name="celsius_field" id="celsius_field" style="width:100px" /></td>
<td><input type="button" value="To Fahrenheit" onclick="CelsiusToFahrenheit($('celsius_field'), $('fahrenheit_field'))" /></td>
</tr>
<tr>
<td>Fahrenheit:</td>
<td><input type="text" name="fahrenheit_field" id="fahrenheit_field" style="width:100px" /></td>
<td><input type="button" value="To Celsius" onclick="FahrenheitToCelsius($('fahrenheit_field'), $('celsius_field'))" /></td>
</tr>
</table>
Incoming search terms for the article:
Recent Comments