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git rebase without changing commit timestamps

...rresponding author dates, you can run: git filter-branch --env-filter 'GIT_COMMITTER_DATE=$GIT_AUTHOR_DATE; export GIT_COMMITTER_DATE' share | improve this answer | follow ...
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What is the difference between join and merge in Pandas?

...andas as pd left = pd.DataFrame({'key': ['foo', 'bar'], 'val': [1, 2]}).set_index('key') right = pd.DataFrame({'key': ['foo', 'bar'], 'val': [4, 5]}).set_index('key') left.join(right, lsuffix='_l', rsuffix='_r') val_l val_r key foo 1 4 bar 2 5 The same functi...
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How to check if a python module exists without importing it

...mport can find something in python2, using imp import imp try: imp.find_module('eggs') found = True except ImportError: found = False To find dotted imports, you need to do more: import imp try: spam_info = imp.find_module('spam') spam = imp.load_module('spam', *spam_info) i...
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What's the difference between dynamic (C# 4) and var?

... { [CompilerGenerated] private static class <Main>o__SiteContainer0 { public static CallSite<Action<CallSite, object>> <>p__Site1; } private static void Main(string[] args) { Junk a = new Junk(); /...
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Is there a foreach loop in Go?

... https://golang.org/ref/spec#For_range A "for" statement with a "range" clause iterates through all entries of an array, slice, string or map, or values received on a channel. For each entry it assigns iteration values to corresponding iteration v...
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What is a singleton in C#?

...Prevent outside instantiation } private static readonly Singleton _singleton = new Singleton(); public static Singleton GetSingleton() { return _singleton; } } share | ...
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Do I need to disable NSLog before release Application?

...Debug configuration add a value to "Preprocessor Macros" value like: DEBUG_MODE=1 Make sure you only do this for the Debug configuration and not for Beta or Release versions. Then in a common header file you can do something like: #ifdef DEBUG_MODE #define DLog( s, ... ) NSLog( @"<%p %@:(%d)&...
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Request is not available in this context

...ted mode: Request is not available in this context exception in Application_Start: The “Request is not available in this context” exception is one of the more common errors you may receive on when moving ASP.NET applications to Integrated mode on IIS 7.0. This exception happens in...
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Stack smashing detected

... errors, since it can't add red zones there – toasted_flakes Jan 7 '14 at 10:35 8 This answer is ...
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How can I maintain fragment state when added to the back stack?

...sion 1. Use version 2) public class FragmentA extends Fragment { View _rootView; public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { if (_rootView == null) { // Inflate the layout for this fragment _...