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Should I use #define, enum or const?
...g = 8,
Create another member for an invalid state. This can be useful as error code; for example, when you want to return the state but the I/O operation fails. It is also useful for debugging; use it in initialisation lists and destructors to know if the variable's value should be used.
xInvalid...
Why escape_javascript before rendering a partial?
...t of that replacement must be valid javascript, otherwise it will throw an error when the client tries to process it. So that's the first thing: you need valid javascript.
Another thing to take into account is that whatever ruby generates must be contained inside a javascript string with double quo...
What is Node.js' Connect, Express and “middleware”?
...bodies
query automatic querystring parser, populating req.query
errorHandler flexible error handler
Connect is the framework and through it you can pick the (sub)modules you need.
The Contrib Middleware page enumerates a long list of additional middlewares.
Express itself comes with ...
Git merge left HEAD marks in my files
I tried to merge a file in the command line using Git, when an error message appeared telling me the merge was aborted.
5 ...
Create a custom event in Java
...unding declaration in the body of a class method results in a compile-time error." -- JLS for Java 5, §8.4.3.2
– cHao
Aug 3 '14 at 5:23
...
Changing the cursor in WPF sometimes works, sometimes doesn't
...ng the app cursor can have nasty side effects, for instance, a popping up (error) message box might be forced to use the same overridden cursor erroneously while the intention was only to override while the mouse is hovering over the actual and active control.
– Gábor
...
Detect all Firefox versions in JS
...
// Statement to handle exceptions
outputVersion.innerHTML = "An error occured. This could be because the default settings in Firefox have changed. Check about.config ";
}
<div id="displayFoxVersion"></div>
...
How do I validate a date string format in python?
...
datetime.datetime.strptime(date_text, '%Y-%m-%d')
except ValueError:
raise ValueError("Incorrect data format, should be YYYY-MM-DD")
>>> validate('2003-12-23')
>>> validate('2003-12-32')
Traceback (most recent call last):
File "<pyshell#20>", line 1,...
How can I maintain fragment state when added to the back stack?
... footprint), then there is high possibility you end up with the OutOfMemoryError since all of the fragments holds rootview reference and GC cant collect it. I think the better approach is to inflate the view all the time (and let Android system handle its view creation/destroying) and onActivityCrea...
How do I run a Python program in the Command Prompt in Windows 7?
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On Windows 10 cmd would still throw the same error after running this script ('python' is not recognized ...). After inspecting the PATH I noticed that the relevant lines had indeed been added, but only to the "user variables", not to "system variables". I copied them m...