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Why does changing the returned variable in a finally block not change the return value?
...value of s at the time the return statement executes is the value returned by the method. The fact that the finally clause later changes the value of s (after the return statement completes) does not (at that point) change the return value.
Note that the above deals with changes to the value of s it...
Check whether a string contains a substring
...es are needed because a . can match any character. You can get around this by using the \Q and \E operators.
my $substring = "s1.domain.com";
if ($mystring =~ /\Q$substring\E/) {
print qq("$mystring" contains "$substring"\n);
}
Or, you can do as eugene y stated and use the index function. ...
Re-raise exception with a different type and message, preserving existing information
...ueError("Bad grape") from exc
The caught exception (exc, a KeyError) thereby becomes part of (is the “cause of”) the new exception, a ValueError. The “cause” is available to whatever code catches the new exception.
By using this feature, the __cause__ attribute is set. The built-in exceptio...
Why does installing Nokogiri on Mac OS fail with libiconv is missing?
...er. If you already have it installed, be sure to grab the latest formulae by updating like so:
brew update
Note: In OSX 10.9+ you may need to install xCode command tools to allow you to install libiconv.
xcode-select --install
then install a newer version of libiconv
brew install libiconv
...
ASP.NET MVC Controller Naming Pluralization
... single or multiple entities. Especially since the controller name is used by default in the URL.
While the project templates use singular (HomeController, AccountController), there is only one Home and the Account actions only operate on the single account for the session. I would not expect the U...
SQL ON DELETE CASCADE, Which Way Does the Deletion Occur?
...Here is a simple example for others visting this old post, but is confused by the example in the question:
Delivery -> Package (One -> Many)
CREATE TABLE Delivery(
Id INT IDENTITY PRIMARY KEY,
NoteNumber NVARCHAR(255) NOT NULL
)
CREATE TABLE Package(
Id INT IDENTITY PRIMARY KEY,...
Git - Undo pushed commits
...mmit from history as they were faulty ones anyway)
– byemute
Oct 30 '15 at 15:27
1
...
How to show current year in view?
...
<%= Time.current.year %>
http://pleac.sourceforge.net/pleac_ruby/datesandtimes.html
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Select first occurring element after another element
...ector (+).
h4 + p {color:red}//any <p> that is immediately preceded by an <h4>
<h4>Some text</h4>
<p>I'm red</p>
<p>I'm not</p>
However, if you wanted to select all successive paragraphs, you'd need to use the general sibling selector (~).
h4 ~ p ...
Append to a file in Go
... if err != nil {
log.Fatal(err)
}
if _, err := f.Write([]byte("appended some data\n")); err != nil {
log.Fatal(err)
}
if err := f.Close(); err != nil {
log.Fatal(err)
}
}
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