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Passing multiple values to a single PowerShell script parameter
...st way is probably to use two parameters: One for hosts (can be an array), and one for vlan.
param([String[]] $Hosts, [String] $VLAN)
Instead of
foreach ($i in $args)
you can use
foreach ($hostName in $Hosts)
If there is only one host, the foreach loop will iterate only once. To pass multip...
javascript window.location in new tab
...unless you're writing a browser extension. You could try using window.open and hoping that the user has their browser set to open new windows in new tabs.
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Is there a literal notation for an array of symbols?
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Modifier Meaning
%q[ ] Non-interpolated String (except for \\ \[ and \])
%Q[ ] Interpolated String (default)
%r[ ] Interpolated Regexp (flags can appear after the closing delimiter)
%s[ ] Non-interpolated Symbol
%w[ ] Non-interpolated Array of words, separated by wh...
Why does Haskell's “do nothing” function, id, consume tons of memory?
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We know the type of id,
id :: a -> a
And when we specialize this for id id, the left copy of id has type:
id :: (a -> a) -> (a -> a)
And then when you specialize this again for the leftmost id in id id id, you get:
id :: ((a -> a) -> (a -> ...
SQL Server: converting UniqueIdentifier to string in a case statement
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What is the basic difference between cast() and convert() ?
– R K Sharma
Dec 4 '15 at 9:53
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How to convert String object to Boolean Object?
...: this does not create new instances of Boolean, so performance is better (and less garbage-collection). It reuses the two instances of either Boolean.TRUE or Boolean.FALSE.
boolean: no instance is needed, you use the primitive type.
The official documentation is in the Javadoc.
UPDATED:
Auto...
List comprehension with if statement
I want to compare 2 iterables and print the items which appear in both iterables.
4 Answers
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Shortcut for creating single item list in C#
...is does seems sort of strange, but I like the utility of it. Thanks Martin and Jon.
– Ryan Ische
Jan 20 '09 at 20:08
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running Rails console in production
...evelopment or test (value is development by default)
Adding the option --sandbox makes it so that any changes you make to your database in the console will be rolled back after you exit
If this isn't working for you, you may need to try
bundle exec rails console production
If you are actually t...
How do I turn on SQL debug logging for ActiveRecord in RSpec tests?
I have some RSpec tests for my models and I would like to turn on SQL ActiveRecord logging just like I see in the Rails server mode. How to do that?
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