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How to prune local tracking branches that do not exist on remote anymore
...merged master | egrep -v '^\s*\*?\s*master$' | xargs git branch -d. Output from git v2.10.1 will display "* master" when master is checked out. I get rid of master both with or without an asterisk.
– Esteban
May 16 '17 at 19:12
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Get Slightly Lighter and Darker Color from UIColor
...ibility, these methods should be implemented as an UIColor category. Also, from @Riley's idea, it may be a better idea to make the color proprtionally darker or lighter instead of adding or subtracting constant values. As @jrturton pointed out, it's not necessary to manipulate the RGB components; it...
When is finally run if you throw an exception from the catch block?
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from how I interpret his example he is attempting to do a try catch finally within another try block. NOT a try catch within a try catch finally
– Matthew Pigram
Feb 6 '14 at 23:07
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How does virtual inheritance solve the “diamond” (multiple inheritance) ambiguity?
...w.
So B::A and C::A are the same and so there can be no ambiguous calls from D. If you don't use virtual inheritance you have the second diagram above. And any call to a member of A then becomes ambiguous and you need to specify which path you want to take.
Wikipedia has another good rundown a...
Is there a ceiling equivalent of // operator in Python?
... (lossy) floating-point conversion.
Here's a demonstration:
>>> from __future__ import division # a/b is float division
>>> from math import ceil
>>> b = 3
>>> for a in range(-7, 8):
... print(["%d/%d" % (a, b), int(ceil(a / b)), -(-a // b)])
...
['-7/3',...
What does appending “?v=1” to CSS and Javascript URLs in link and script tags do?
I have been looking at a HTML 5 boilerplate template (from http://html5boilerplate.com/ ) and noticed the use of "?v=1" in URLs when referring to CSS and Javascript files.
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All permutations of a Windows license key
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from itertools import product
for perm in product('8B', 'B8', 'HN', '6G'):
print 'MPP6R-09RXG-2H%sMT-%sK%sM9-V%sC8R' % perm
share
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Static Classes In Java
...ed or instance fields accessed
Note that the compiler will not prevent you from declaring an instance (non-static) member. The issue will only show up if you attempt to call the instance member
Simple example per suggestions from above:
public class TestMyStaticClass {
public static void mai...
Breadth First Vs Depth First
... Container
While (there are nodes in Container)
N = Get the "next" node from Container
Store all the children of N in Container
Do some work on N
The difference between the two traversal orders lies in the choice of Container.
For depth first use a stack. (The recursive implementation ...
Why is there “data” and “newtype” in Haskell? [duplicate]
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From application point of view, since newtype is a new name of an existing type, it is used to implement multiple instances of a class for that same underlying type. Now compiler won't complain if you attempt to define instan...