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Adding a cross-reference to a subheading or anchor in another page
... general :ref: directive, documented here. They give this example:
.. _my-reference-label:
Section to cross-reference
--------------------------
This is the text of the section.
It refers to the section itself, see :ref:`my-reference-label`.
Although the general hyperlinkin...
Collapse sequences of white space into a single character and trim string
... d*mn line endings and auto-format... it doesn't deal with "hello______foo" (assume _ -> " " because formatting comments is hard)
– Brian Postow
Sep 15 '09 at 14:11
32...
How to implement an abstract class in ruby?
...clarative about which methods are abstract:
module Abstract
def abstract_methods(*args)
args.each do |name|
class_eval(<<-END, __FILE__, __LINE__)
def #{name}(*args)
raise NotImplementedError.new("You must implement #{name}.")
end
END
# import...
Getting the last argument passed to a shell script
...
The simplest answer for bash 3.0 or greater is
_last=${!#} # *indirect reference* to the $# variable
# or
_last=$BASH_ARGV # official built-in (but takes more typing :)
That's it.
$ cat lastarg
#!/bin/bash
# echo the last arg given:
_last=${!#}
echo $_last
_last...
How do I check if a string contains another string in Swift?
... and containsIgnoringCase for String
extension String {
func contains(_ find: String) -> Bool{
return self.range(of: find) != nil
}
func containsIgnoringCase(_ find: String) -> Bool{
return self.range(of: find, options: .caseInsensitive) != nil
}
}
Older Swift vers...
What is the _snowman param in Ruby on Rails 3 forms for?
...n Ruby on Rails 3 (currently using Beta 4), I see that when using the form_tag or form_for helpers there is a hidden field named _snowman with the value of ☃ ( Unicode \x9731) showing up.
...
Does Swift have documentation generation support?
...// You can use bulleted lists (use `-`, `+` or `*`):
///
/// - Text can be _emphasised_
/// - Or **strong**
///
/// Or numbered lists:
///
/// 7. The numbers you use make no difference
/// 0. The list will still be ordered, starting from 1
/// 5. But be sensible and just use 1, 2, 3 etc…
///
/// -...
Flex-box: Align last row to grid
...p:wrap;
}
.grid::after{
content: '';
width: 10em // Same width of .grid__element
}
.grid__element{
width:10em;
}
With the HTML like this:
<div class=grid">
<div class="grid__element"></div>
<div class="grid__element"></div>
<div class="grid__elemen...
Can Powershell Run Commands in Parallel?
...
# Execute the jobs in parallel
Start-Job $ScriptBlock -ArgumentList $_
}
Get-Job
# Wait for it all to complete
While (Get-Job -State "Running")
{
Start-Sleep 10
}
# Getting the information back from the jobs
Get-Job | Receive-Job
...
“Incorrect string value” when trying to insert UTF-8 into MySQL via JDBC?
...y 4 bytes in UTF-8.
You may also have to set the server property character_set_server to utf8mb4 in the MySQL configuration file. It seems that Connector/J defaults to 3-byte Unicode otherwise:
For example, to use 4-byte UTF-8 character sets with Connector/J, configure the MySQL server with cha...