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What does the Q_OBJECT macro do? Why do all Qt objects need this macro?
I just started using Qt and noticed that all the example class definitions have the macro Q_OBJECT as the first line. What is the purpose of this preprocessor macro?
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String.replaceAll single backslashes with double backslashes
...ument as a regular expression. The \ is an escape character in both String and regex. You need to double-escape it for regex:
string.replaceAll("\\\\", "\\\\\\\\");
But you don't necessarily need regex for this, simply because you want an exact character-by-character replacement and you don't nee...
Why do I want to avoid non-default constructors in fragments?
I am creating an app with Fragments and in one of them, I created a non-default constructor and got this warning:
6 Answe...
Redirect stdout pipe of child process in Go
...d. (That's a problem because this server-like program runs for a long time and I want to read the log output)
3 Answers
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In PowerShell, how do I define a function in a file and call it from the PowerShell commandline?
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Try this on the PowerShell command line:
. .\MyFunctions.ps1
A1
The dot operator is used for script include.
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Add timestamps to an existing table
...pecified above, Rails will still treat these columns as timestamp columns, and update the values normally.
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WebForms UnobtrusiveValidationMode requires a ScriptResourceMapping for 'jquery'. Please add a Scrip
...word count into my textbox.
However after adding the the javascript codes and the html codes. I receive the error as stated above.
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month name to month number and vice versa in python
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Hmmm, I did this and it worked... d = dict((v,k) for k,v in enumerate(calendar.month_abbr))
– Mark_Masoul
Aug 5 '10 at 18:58
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Regular expression to match URLs in Java
...fully within RegexBuddy. However, when I copied it as Java String flavor and pasted it into Java code, it does not work. The following class prints false :
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How to remove duplicate values from a multi-dimensional array in PHP
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Because of unserialize this is slower and slower the larger and more complex the array is. There is a reason I used array_intersect_key (half a year before this answer).
– OIS
Feb 8 '13 at 23:00
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