How to format a number 1000 as “1 000”
There is no built in way to it ( unless you using Rails, ActiveSupport Does have methods to do this) but you can use a Regex like formatted_n = n.to_s.reverse.gsub(/…(?=.)/,’\&,’).reverse
numbers
Letter after a number, what is it called?
The best source is the C# specification, specifically section Literals. The relevant bits: The type of an integer literal is determined as follows: If the literal has no suffix, it has the first of these types in which its value can be represented: int, uint, long, ulong. If the literal is suffixed by U or … Read more
Check if a string contains numbers
Check out the MySQL Regex methods. Something like the following should work. SELECT * FROM table WHERE tag REGEXP ‘[0-9]’
SQLite function to format numbers with leading zeroes?
This can be accomplished with a little bit of magic using string concatenation and the substr function. Long story short, here’s what you want: select substr(‘0000000000’||’1234′, -10, 10) An explanation follows. First, know that SQLite’s string concatenation operator is ||. We’ll start by taking a string that is as long as the value we want … Read more
What’s the deal with char.GetNumericValue?
Remember that it’s taking a Unicode character and returning a value. ‘0’ through ‘9’ are the standard decimal digits, however there are other Unicode characters that represent numbers, some of which are floating point. Like this character: ¼ Console.WriteLine( char.GetNumericValue( ‘¼’ ) ); Outputs 0.25 in the console window.
Android Number Picker Dialog [closed]
I know that more than two years passed but answer is still actual and I find some nice Number Pickers. Here is one of them https://github.com/SimonVT/android-numberpicker
How to properly format currency on ios
You probably want something like this (assuming currency is a float): NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init]; [numberFormatter setNumberStyle: NSNumberFormatterCurrencyStyle]; NSString *numberAsString = [numberFormatter stringFromNumber:[NSNumber numberWithFloat:currency]]; From your requirements to treat 52 as .52 you may need to divide by 100.0. The nice thing about this approach is that it will respect the current locale. … Read more
VB.net Need Text Box to Only Accept Numbers
You can do this with the use of Ascii integers. Put this code in the Textbox’s Keypress event. e.KeyChar represents the key that’s pressed. And the the built-in function Asc() converts it into its Ascii integer. Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress ’97 – 122 = Ascii codes for … Read more