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How to check whether an array is empty using PHP?
...er(): If no callback is supplied, all entries of array equal to FALSE (see converting to boolean) will be removed.
If you'd like to remove all NULL, FALSE and empty strings (''), but leave zero values (0), you can use strlen as a callback, e.g.:
$is_empty = array_filter($playerlist, 'strlen') == ...
Rails: fields_for with index?
...e = "#{object_name}[#{association_name}_attributes]"
association = convert_to_model(association)
if association.respond_to?(:persisted?)
association = [association] if @object.send(association_name).is_a?(Array)
elsif !association.respond_to?(:to_ary)
ass...
Python, Unicode, and the Windows console
...))
safeprint(u"\N{EM DASH}")
The bad character(s) in the string will be converted in a representation which is printable by the Windows console.
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Or versus OrElse
...> 3 Then
MsgBox("True")
End If
Result is: Error cannot convert string to double.
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Sorting a Python list by two fields
...For example, the columns to be used as keys are all strings that cannot be converted to numbers. Secondly, one wants to sort in ascending order by one column and descending order by another column.
– coder.in.me
Sep 25 '16 at 9:00
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Java FileReader encoding issue
I tried to use java.io.FileReader to read some text files and convert them into a string, but I found the result is wrongly encoded and not readable at all.
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Copy table without copying data
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How could you convert show create table bar into a dynamically executable statement?
– Pacerier
Feb 2 '15 at 12:23
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Best way to parse command line arguments in C#? [closed]
... without specifying the property name.
Value conversion: Uses the powerful ConvertEx class also included in BizArk to convert values to the proper type.
Boolean flags: Flags can be specified by simply using the argument (ex, /b for true and /b- for false) or by adding the value true/false, yes/no, e...
Terminating a script in PowerShell
... via CLI e.g. powershell -command "& module-function ...". I needed to convert those functions to throw to a wrapping try-catch and exit from that wrapping catch in order to actually output an error exit code.
– Josh
Mar 16 '16 at 14:37
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Is there a recommended way to return an image using ASP.NET Web API
...a System.Drawing.Image, unless you also add a formatter which knows how to convert that into the appropriate bytes doesn't serialize itself as the image bytes as you'd expect.
One possible solution is to return an HttpResponseMessage with the image stored in its content (as shown below). Remember t...