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Accessing class variables from a list comprehension in the class definition
...ble. Names are resolved in
the innermost enclosing function scope. If a class definition
occurs in a chain of nested scopes, the resolution process skips
class definitions.
and in the class compound statement documentation:
The class’s suite is then executed in a new exec...
or (HTML5)
...<menu>'s type attribute is omitted or set to "toolbar". See the specification for the <li> element and the <menu> element.
– tomekwi
May 27 '15 at 7:31
...
How to effectively work with multiple files in Vim
...h> you can add a new tab; and with a regular :q or :wq you close a tab.
If you map :tabn and :tabp to your F7/F8 keys you can easily switch between files.
If there are not that many files or you don't have Vim 7 you can also split your screen in multiple files: :sp <filepath>. Then you can...
DbArithmeticExpression arguments must have a numeric common type
...ent, something like:
var sleeps = context.Sleeps(o =>
DbFunctions.DiffHours(o.ClientDateTimeStamp, clientDateTime) < 24);
Note that the DiffHours method accepts Nullable<DateTime>.
Entity Framwork core (when used with Sql Server, maybe other db providers) supports the DateTime Ad...
What is the difference between functional and non functional requirement? [closed]
What is the difference between functional and non-functional requirements in the context of designing a software system?
...
How do I write a short literal in C++?
.... I would guess that the compiler would be smart enough to compile this as if it's a short literal (i.e. it wouldn't actually allocate an int and then cast it every time).
The following illustrates how much you should worry about this:
a = 2L;
b = 2.0;
c = (short)2;
d = '\2';
Compile -> disa...
How do I iterate through table rows and cells in JavaScript?
If I have an HTML table...say
9 Answers
9
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Postgres could not connect to server
... -D /usr/local/var/postgres -- it will give you a much more verbose output if postgres fails to start.
In my case, running rm -rf /usr/local/var/postgres && initdb /usr/local/var/postgres -E utf8 removed my old databases and then reinitialized the postgres db schema.
Thanks to https://gi...
Get statistics for each group (such as count, mean, etc) using pandas GroupBy?
...
Please see my answer if you want to get only one count column per group.
– Pedro M Duarte
Sep 26 '15 at 19:43
...
What causes javac to issue the “uses unchecked or unsafe operations” warning
...
This comes up in Java 5 and later if you're using collections without type specifiers (e.g., Arraylist() instead of ArrayList<String>()). It means that the compiler can't check that you're using the collection in a type-safe way, using generics.
To ge...