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How to put a unicode character in XAML?
...y inside Text="...". When using a Binding with my ViewModel I had to use a string variable containing "\u2014".
– flocbit
Aug 7 '18 at 9:10
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HttpServletRequest - how to obtain the referring URL?
...lable in the HTTP referer header. You can get it in a servlet as follows:
String referrer = request.getHeader("referer"); // Yes, with the legendary misspelling.
You, however, need to realize that this is a client-controlled value and can thus be spoofed to something entirely different or even re...
Why all the Active Record hate? [closed]
...ss tools, e.g. some variations of simple, easy, plain hash_map get_record( string id_value, string table_name, string id_column_name="id" ) and similar methods (of course, the concepts and elegance greatly varies with the language used).
2) long version: In any database-driven projects where I had ...
Why no generics in Go?
...s.md.
For example, the PrintSlice function receives a slice of integers or strings and prints it. See https://www.jetbrains.com/help/go/how-to-use-type-parameters-for-generic-programming.html.
package main
import "fmt"
func PrintSlice(type T)(s []T) {
for _, v := range s {
fmt.Print(v...
How to write to a file, using the logging Python module?
...places with leading zeros
#4s would work as well, but would simply pad the string with leading spaces, right justify
#-4s would work as well, but would simply pad the string with trailing spaces, left justify
#filename is the file name from where the call to log is made
#funcName is the method name ...
Convert varchar to uniqueidentifier in SQL Server
...0)
SET @uuid = 'a89b1acd95016ae6b9c8aabb07da2010'
SELECT CAST(
SUBSTRING(@uuid, 1, 8) + '-' + SUBSTRING(@uuid, 9, 4) + '-' + SUBSTRING(@uuid, 13, 4) + '-' +
SUBSTRING(@uuid, 17, 4) + '-' + SUBSTRING(@uuid, 21, 12)
AS UNIQUEIDENTIFIER)
...
How to check if field is null or empty in MySQL?
...ld1
from tablename
If you only want to check for null and not for empty strings then you can also use ifnull() or coalesce(field1, 'empty'). But that is not suitable for empty strings.
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im...
Best way to test exceptions with Assert to ensure they will be thrown
...e );
}
catch (Exception e)
{
Assert.Fail(
string.Format( "Unexpected exception of type {0} caught: {1}",
e.GetType(), e.Message )
);
}
}
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Mixin vs inheritance
...riety of parent classes. Mixins may call a method (for example sayHello(): String) even though they do not define such a method.
mixin M {
name: String
defmethod greetings() { print sayHello() + " " + name}
}
As you see, you can call sayHello() even though it is not defined anywhere. If ...
How to open files relative to home directory
... character.
From the File documentation:
absolute_path(file_name [, dir_string] ) → abs_file_name
Converts a pathname to an absolute pathname. Relative paths are referenced from the current working directory of the process unless dir_string is given, in which case it will be used as the st...