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When exactly is it leak safe to use (anonymous) inner classes?
...u are actually asking several questions at once. I'll do my best with the knowledge that I have to cover it and, hopefully, some others will join in to cover what I may miss.
Nested Classes: Introduction
As I'm not sure how comfortable you are with OOP in Java, this will hit a couple of basics. A ...
“The given path's format is not supported.”
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Got an error now:Error 4 A using namespace directive can only be applied to namespaces; 'System.IO.Path' is a type not a namespace
– All Blond
Sep 8 '11 at 13:32
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How to select a single field for all documents in a MongoDB collection?
...e returned document will return only the roll field (and exclude the _id).
If we don't mention _id:0 the fields returned will be roll and _id. The '_id' field is always displayed by default. So we need to explicitly mention _id:0 along with roll.
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What is a CSRF token ? What is its importance and how does it work?
...se it is implied by your login.)
You visit www.cute-cat-pictures.org, not knowing that it is a malicious site.
If the owner of that site knows the form of the above request (easy!) and correctly guesses you are logged into mybank.com (requires some luck!), they could include on their page a request ...
What is the most pythonic way to check if an object is a number?
...True
'2' False
This is, of course, contrary to duck typing. If you are more concerned about how an object acts rather than what it is, perform your operations as if you have a number and use exceptions to tell you otherwise.
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What does `m_` variable prefix mean?
... need to see where they're defined to know their scope. This is also great if you already know the scope and you're using something like intelliSense, you can start with m_ and a list of all your member variables are shown. Part of Hungarian notation, see the part about scope in the examples here.
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Naming of ID columns in database tables
... does this!)and forget to change the alias in the join condition.
So you now have
select t1.field1, t2.field2, t3.field3
from table1 t1
join table2 t2 on t1.id = t2.table1id
join table3 t3 on t1.id = t3.table2id
when you meant
select t1.field1, t2.field2, t3.field3
from table1 t1
join table...
how to get the current working directory's absolute path from irb
I'm running Ruby on Windows though I don't know if that should make a difference. All I want to do is get the current working directory's absolute path. Is this possible from irb? Apparently from a script it's possible using File.expand_path(__FILE__)
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Is “argv[0] = name-of-executable” an accepted standard or just a common convention?
...dards documents to be sure. For example, ISO C11 states (my emphasis):
If the value of argc is greater than zero, the string pointed to by argv[0] represents the program name; argv[0][0] shall be the null character if the program name is not available from the host environment.
So no, it's onl...
Is it possible to import a whole directory in sass using @import?
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If you are using Sass in a Rails project, the sass-rails gem, https://github.com/rails/sass-rails, features glob importing.
@import "foo/*" // import all the files in the foo folder
@import "bar/**/*" // import all the...