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Shortcuts in Objective-C to concatenate NSStrings
...or whatever to the return value of this function.
Or, to make a shortcut, convert the NSString into a C++ string and use the '+' there.
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How to declare a variable in a PostgreSQL query
...master_login = (SELECT login
FROM master_user)
AND (SELECT registration_date
FROM master_user) > ...;
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How do I detect the Python version at runtime? [duplicate]
I have a Python file which might have to support Python versions < 3.x and >= 3.x. Is there a way to introspect the Python runtime to know the version which it is running (for example, 2.6 or 3.2.x )?
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Action bar navigation modes are deprecated in Android L
Taking a look at the API diff report for the Android "L" preview, I see that all methods related to navigation modes in the ActionBar class (such as setNavigationMode() , addTab() , selectTab() , &c). are now deprecated.
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Checking to see if one array's elements are in another array in PHP
... why in PHP docs about this function they say "Returns FALSE if var exists and has a non-empty, non-zero value. Otherwise returns TRUE. The following things are considered to be empty: array() (an empty array)"? Source: php.net/manual/en/function.empty.php
– Pere
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Removing an activity from the history stack
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You can achieve this by setting the android:noHistory attribute to "true" in the relevant <activity> entries in your AndroidManifest.xml file. For example:
<activity
android:name=".AnyActivity"
android:noHistory="true" />
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Recursion or Iteration?
...gorithms to make them faster and more efficient. He also goes over how to convert a traditional loop into a recursive function and the benefits of using tail-end recursion. His closing words really summed up some of my key points I think:
"recursive programming gives the programmer a better w...
Non-recursive depth first search algorithm
...rsion you can't delete node's memory in visit function. This algorithm can convert tree to single-linked list by using "first_child" pointer. Than you can walk through it and free node's memory without recursion.
– puchu
Feb 20 '14 at 16:38
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Pythonic way to find maximum value and its index in a list?
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@Sven-Marnach Would numpy be faster, if I had to convert my list to a numpy array first? Would it be faster for the simple example [0,1,0]?
– tommy.carstensen
Sep 8 '13 at 23:33
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Python Requests - No connection adapters
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@ChristianLong is there any way to convert a string to proper url? Like, can you tell me, what are you doing in your comment?
– Ravi Shankar Bharti
Aug 11 '18 at 11:50
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