units-of-measurement

I know you can strip units from numbers in SASS when you know the unit before-hand like this: $number: 16px; $without-unit: 16px / 1px; @warn $without-unit; // 16 But is it possible to strip the unit from a number without knowing what the unit is first? @function strip-unit($number) { // magic code here... } @warn strip-unit(16px); // 16 -- UPDATE: You should never actually need to use this function. Sass math is very smart about units, and I have never seen a use-case in which stripping units was a better option than simply using correct math to get what you need. See the Sass issue thread

Does setWidth(int pixels) use device independent pixel or physical pixel as unit? For example, does setWidth(100) set the a view's width to 100 dips or 100 pxs? Thanks. Daniel Lew It uses pixels, but I'm sure you're wondering how to use dips instead. The answer is in TypedValue.applyDimension() . Here's an example of how to convert dips to px in code: // Converts 14 dip into its equivalent px Resources r = getResources(); int px = Math.round(TypedValue.applyDimension( TypedValue.COMPLEX_UNIT_DIP, 14,r.getDisplayMetrics())); The correct way to obtain a constant number of DIPs in code is to

(Not to be confused with Xunit , a popular .Net unit testing library.) Today in a fit of boredom I started inspecting Gmails DOM (yes, I was very bored). Everything looked pretty straightforward until I noticed an interesting specification on the widths of certain elements. The illustrious Googlites had specified a number of table cols using the rare 'ex' unit. width: 22ex; At first I was stumped ("what's an 'ex'?"), then it came back to me: I seem to remember something from years ago when first I was learning about CSS. From the CSS3 spec : [The ex unit is] equal to the used x-height of the

Inspired by Units of Measure in F# , and despite asserting ( here ) that you couldn't do it in C#, I had an idea the other day which I've been playing around with. namespace UnitsOfMeasure { public interface IUnit { } public static class Length { public interface ILength : IUnit { } public class m : ILength { } public class mm : ILength { } public class ft : ILength { } } public class Mass { public interface IMass : IUnit { } public class kg : IMass { } public class g : IMass { } public class lb : IMass { } } public class UnitDouble<T> where T : IUnit { public readonly double Value; public