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What is the pythonic way to avoid default parameters that are empty lists?
...ined, not each time the function is called (like it is in say, Ruby). This means that if you use a mutable default argument and mutate it, you will and have mutated that object for all future calls to the function as well"
Sample code to implement it:
def foo(element, to=None):
if to is None:...
How do I get the YouTube video ID from a URL?
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What do you mean by "None of these worked on the kitchen sink"?
– rmutalik
May 13 at 23:50
add a comment
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What in the world are Spring beans?
...on. The idea that a bean definition is a recipe is important,
because it means that, just like a class, you can potentially have
many object instances created from a single recipe.
You can control not only the various dependencies and configuration
values that are to be plugged into an ob...
Why does ASP.NET webforms need the Runat=“Server” attribute?
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If a control is running at the server, does that mean you can't select the elements using Javascript? e.g. document.getElementsById("tvns:treeview");
– Ciaran Gallagher
Nov 22 '13 at 10:13
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Is it a bad practice to use negative margins in Android?
...ot make that assumption. I have no idea what a negative padding would even mean.
– CommonsWare
Jan 21 '13 at 21:59
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How do I center align horizontal menu?
... This is lovely! But, the ul has default padding on the left which means the menu is nudged to the right of the center. You'll need to remove the default padding from the ul with padding-left: 0;
– Iterative Gypsy
Jul 21 '14 at 18:58
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Why does comparing strings using either '==' or 'is' sometimes produce a different result?
...f memory, which
take time; and the reads fills up the
processor cache, meaning there is less
cache available for other needs. With
interned strings, a simple object
identity test suffices after the
original intern operation; this is
typically implemented as a pointer
equality test, n...
How to change spinner text size and text color?
... @vilpe89 could you modify your above code to show what you mean by this? where does this android:id go? certainly not in the spinner tag, because it has it's own id. but it doesn't make sense to add it in the textview tag you have created above. how do i reference that i want to ...
How to change menu item text dynamically in Android
...because "I need to be able to set it after the activity has been rendered" means to me after you call setContent(R.layout.id), you might need to change what the options menu displays (which you can do with setOptionsTitle() - from any method, anywhere, anytime).
– Jack
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How can I SELECT rows with MAX(Column value), DISTINCT by another column in SQL?
...ULLs in the columns of b (they are marked with * in the table above); this means, due to the second condition from the JOIN clause, the row selected from m has the biggest value in column datetime.
Read the SQL Antipatterns: Avoiding the Pitfalls of Database Programming book for other SQL tips.
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