The United States is one of the last bodies that refuses to implement the Celsius temperature standard. Why? Because we’re arrogant and feel like we don’t need to change. With that said, if you code for users outside the US, it’s important to provide localized weather data to users. Let’s took at how you can convert between Fahrenheit and Celsius.
Fahrenheit to Celsius
The formula to convert Fahrenheit to Celsius is:
°C = 5/9 x (°F - 32)
The following function converts Fahrenheit to Celsius:
function convertFahrenheitToCelsius(degrees) { return Math.floor(5 / 9 * (degrees - 32)); }
Celsius to Fahrenheit
The formula to convert Celsius to Fahrenheit is:
°F = (°C × 9/5) + 32
The following function converts Celsius to Fahrenheit:
function convertCelsiusToFahrenheit(degrees) { return Math.floor(degrees * (9/5) + 32); }
Temperature conversion is one of those things that’s difficult to do in your head due to the somewhat complex formula. If you have a site that reflects weather data, keep these handy functions nearby!
Dynamically Load Stylesheets Using MooTools 1.2
Theming has become a big part of the Web 2.0 revolution. Luckily, so too has a higher regard for semantics and CSS standards. If you build your pages using good XHTML code, changing a CSS file can make your website look completely different.
Submit Button Enabling
“Enabling” you ask? Yes. We all know how to disable the submit upon form submission and the reasons for doing so, but what about re-enabling the submit button after an allotted amount of time. After all, what if the user presses the “stop”…
Source_link