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How to automate createsuperuser on django?
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Personally I don't think deleting the user on each build is a good idea. You risk unintentionally deleting any associated records via a cascade delete. A safer option is to simply bail-out if the user already exists (or update the ...
Preventing scroll bars from being hidden for MacOS trackpad users in WebKit/Blink
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One thing to mention is that, in my testing and a really old comment by someone else it seems you can't have an always-on scrollbar AND the momentum-like scrolling that people are used to with iOS. Doing the momentum-scrolling CSS caused my custom scrollbars to disappear.
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Limit File Search Scope in Sublime Text 2
... showing that folder/** works too. :)
– try-catch-finally
May 21 '15 at 16:56
7
This doesn't seem...
PG::ConnectionBad - could not connect to server: Connection refused
... #2 is a great suggestion: "Check server.log". My error was actually caused by upgrading to Yosemite, the server log said: FATAL: could not open directory "pg_tblspc": No such file or directory. This answer helped me with that problem stackoverflow.com/questions/25970132/…
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Do DOM tree elements with ids become global variables?
...ts’ are added as apparent properties of the document object. This is a really bad idea, as it allows element names to clash with real properties of document.
IE made the situation worse by also adding named elements as properties of the window object. This is doubly bad in that now you have to av...
What is the difference between Step Into and Step Over in the Eclipse debugger?
...e executed next, indicated by ->) at the f(x) line in g(), having been called by the g(2) line in main():
public class testprog {
static void f (int x) {
System.out.println ("num is " + (x+0)); // <- STEP INTO
}
static void g (int x) {
-> f(x); //
f(1); //...
What are the differences between type() and isinstance()?
...identity of types and rejects instances of subtypes, AKA subclasses).
Normally, in Python, you want your code to support inheritance, of course (since inheritance is so handy, it would be bad to stop code using yours from using it!), so isinstance is less bad than checking identity of types because...
When should I use malloc in C and when don't I?
I understand how malloc() works. My question is, I'll see things like this:
6 Answers
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Make a negative number positive
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Note the edge cases, e.g. Math.abs(Integer.MIN_VALUE) = Integer.MIN_VALUE.
– Zach Scrivena
Jan 30 '09 at 0:24
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Locking pattern for proper use of .NET MemoryCache
...t collection that has thread safe reads but non-thread safe writes (almost all of classes under the System.Collections namespace is like that).
Here is how I would do it using ReaderWriterLockSlim to protect access. You need to do a kind of "Double Checked Locking" to see if anyone else created the...