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iOS change navigation bar title font and color
...font will be ignored)
Seems like this works with no problem when only one NavBar is in the view
hierarchy. It appears that secondary NavBars in the same stack are ignored. (Note that if you show the master navigation controller's navBar all the other custom navBar settings are ignored).
Gotch...
PyPy — How can it possibly beat CPython?
... optimisations that PyPy can do (eg. fine grained locks).
As Marcelo mentioned, the JIT. Being able to on the fly confirm the type of an object can save you the need to do multiple pointer dereferences to finally arrive at the method you want to call.
Q2. Which Python implementation was used to i...
Visual Studio loading symbols
...pt "Do you want to delete all breakpoints?" will appear. You need at least one active breakpoint (not sure if the problematic background breakpoint(s) count so set one). Thanks! Much faster now...
– Cymen
May 3 '11 at 15:33
...
Service Reference Error: Failed to generate code for the service reference
... wanted a solution without unchecking "reuse types", and I managed to find one that worked, see my answer here.
– Shahin Dohan
May 18 '17 at 10:21
...
'const int' vs. 'int const' as function parameters in C++ and C
... a constant integer. Neither "a" nor "*a" can be assigned to.
static int one = 1;
int testfunc3 (const int *a)
{
*a = 1; /* Error */
a = &one;
return *a;
}
int testfunc4 (int * const a)
{
*a = 1;
a = &one; /* Error */
return *a;
}
int testfunc5 (const int * const a)
{
*a =...
difference between variables inside and outside of __init__()
... note that this example works only for new type classes, with old ones, they will have the same result
– Abdelouahab
Jan 4 '15 at 0:57
...
How do I change the working directory in Python?
...is thrown, do not perform any recursive operations, especially destructive ones. They will operate on the old path and not the new one.
Return to your old directory when you're done. This can be done in an exception-safe manner by wrapping your chdir call in a context manager, like Brian M. Hunt d...
How to use concerns in Rails 4
... models and avoid them getting too fat and messy.
As an example, I'll put one well known pattern, the taggable pattern:
# app/models/product.rb
class Product
include Taggable
...
end
# app/models/concerns/taggable.rb
# notice that the file name has to match the module name
# (applying Rails...
What is the difference between Θ(n) and O(n)?
... Wikipedia: "In mathematics, two variables are proportional if a change in one is always accompanied by a change in the other, and if the changes are always related by use of a constant multiplier. The constant is called the coefficient of proportionality or proportionality constant."
...
do { … } while (0) — what is it good for? [duplicate]
...ules, of ALWAYS using curly's on your IF statements, even if you only have ONE operation after the IF. This should be standard practice, IMVHO...
– LarryF
Jul 16 '15 at 20:37
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