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Remove sensitive files and their commits from Git history
...situation where you're rewriting history. When others try pull down your latest changes after this, they'll get a message indicating that the changes can't be applied because it's not a fast-forward.
To fix this, they'll have to either delete their existing repository and re-clone it, or follow th...
ExpandableListView - hide indicator for groups with no children
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Tested and don't works. This simple hide all indicators either has children or not.
– frusso
Feb 14 '15 at 21:11
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How to convert std::string to NSString?
...Firstly, you've got to be using Objective-C++ for this to work in the slightest; easiest way to ensure that is rename all your *.m files to *.mm
By far the most usable (non-deprecated) manual way of getting a C++ std::string into an NSString is with:
std::string param; // <-- input
NSString* re...
Detect permission of camera in iOS
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A possibly useful tip – if you are testing code that uses this, you can't merely delete your App from the testing device and then re-instal. Doing this will not cause iOS to reissue the request to the user! What's worked for me though is to change the Bundle I...
How can I check if multiplying two numbers in Java will cause an overflow?
...people who really understand machine arithmetic in Java and which has been tested by lots of people. Don't attempt to write your own or use any of the half-baked untested code posted in the other answers!
– Rich
Jan 21 '14 at 11:22
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What's the difference between globals(), locals(), and vars()?
...nary, and changes to the dictionary are reflected in the namespace:
class Test(object):
a = 'one'
b = 'two'
huh = locals()
c = 'three'
huh['d'] = 'four'
print huh
gives us:
{
'a': 'one',
'b': 'two',
'c': 'three',
'd': 'four',
'huh': {...},
'__module__': '__mai...
Is there an alternative to bastard injection? (AKA poor man's injection via default constructor)
...ad of a config file? What if you want to vary configuration values in unit tests? What if you want to make the configuration value configurable via the UI? ...FWIW, I've expanded on the DI friendly library recommendations here, including more code examples.
– Mark Seemann
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Pip freeze vs. pip list
...ere, django==1.4.2 implies install django version 1.4.2 (even though the latest is 1.6.x).
If you do not specify ==1.4.2, the latest version available would be installed.
You can read more in "Virtualenv and pip Basics",
and the official "Requirements File Format" documentation.
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UnboundLocalError on local variable when reassigned after first use
...f you want to modify it, you have to use the global keyword. Try changing test() to this:
def test():
global c
print(a)
print(b)
print(c) # (A)
c+=1 # (B)
Also, the reason you are getting this error is because you can also declare a new variable inside that function...
How can I parse a JSON file with PHP? [duplicate]
...apsuled in OOP, so you have better reuse and you can easily mock it in UnitTests plus you can stack Iterators with other iterators doing different things, like limiting, caching, filtering and so on.. in addition to any custom iterators you might want to create.
– Gordon
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