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What's the difference between the various methods to get a Context?
...ion about contexts as well:
In a regular Android application, you
usually have two kinds of Context,
Activity and Application.
Reading the article a little bit further tells about the difference between the two and when you might want to consider using the application Context (Activity.get...
How can I generate Unix timestamps?
... BSD date supports also +%s. Probably universal, as date is normally defined in POSIX.2.
– Dereckson
Nov 5 '17 at 15:41
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Find out whether radio button is checked with JQuery?
..."it's checked"); } - you forgot the jQuery $ sign and then need to wrap it all in some more parenthesis.
– zuallauz
Nov 2 '11 at 8:28
2
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In Python, how do I determine if an object is iterable?
...e a method like isiterable ? The only solution I have found so far is to call
21 Answers
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Django using get_user_model vs settings.AUTH_USER_MODEL
...s.AUTH_USER_MODEL will delay the retrieval of the actual model class until all apps are loaded. get_user_model will attempt to retrieve the model class at the moment your app is imported the first time.
get_user_model cannot guarantee that the User model is already loaded into the app cache. It mi...
How do I expand a tuple into variadic template function's arguments?
...
Here's my code if anyone is interested
Basically at compile time the compiler will recursively unroll all arguments in various inclusive function calls <N> -> calls <N-1> -> calls ... -> calls <0> which is the last one and the compiler will o...
Why does scanf() need “%lf” for doubles, when printf() is okay with just “%f”?
...cross-use" %lf with float or %f with double.
But there's no reason to actually do it in practice. Don't use %f to printf arguments of type double. It is a widespread habit born back in C89/90 times, but it is a bad habit. Use %lf in printf for double and keep %f reserved for float arguments.
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CSS does the width include the padding?
...width: 10em; padding: 2em; border: 1em; }
would be 10em wide.
In contrast, all standards-fearing browsers default to the "content-box" box model. In this model, the width of an element does not include padding or borders. For example:
#foo { width: 10em; padding: 2em; border: 1em; }
will actually be...
1114 (HY000): The table is full
...data1:10M:autoextend:max:512M
you cannot host more than 512MB of data in all innodb tables combined.
Maybe you should switch to an innodb-per-table scheme using innodb_file_per_table.
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Get a list of checked checkboxes in a div using jQuery
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Unnecessary call of constructor var selected = new Array();. Better (cheaper) with var selected = [];
– Pono
Mar 17 '14 at 22:45
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