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What is the difference between 'my' and 'our' in Perl?
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Great question: How does our differ from my and what does our do?
In Summary:
Available since Perl 5, my is a way to declare non-package variables, that are:
private
new
non-global
separate from any package, so that the variable cannot be accessed i...
Generating a list of which files changed between hg versions
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where x and y are desired revision numbers (or tag or branch names).
If you are using the terminal in windows add hg status --rev x:y> your-file.txt to save the list to a file.
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WebForms UnobtrusiveValidationMode requires a ScriptResourceMapping for 'jquery'. Please add a Scrip
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More Info on ValidationSettings:UnobtrusiveValidationMode:
Specifies how ASP.NET globally enables the built-in validator controls
to use unobtrusive JavaScript for client-side validation logic.
Type: UnobtrusiveValidationMode
Default value: None
Remarks: If this key valu...
Function to clear the console in R and RStudio
I am wondering if there is a function to clear the console in R and, in particular, RStudio I am looking for a function that I can type into the console, and not a keyboard shortcut.
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How do I programmatically shut down an instance of ExpressJS for testing?
... I would also suggest you pass the done callback to server.close() if calling this from within a hook.
– Ullauri
Aug 30 '18 at 16:47
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Go naming conventions for const
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It's also important to determine if you want your const element exposed to other packages. If you use UpperCamelCase or ALL_CAPS you'll be exporting it outside of your package. For this reason, I stick to lowerCamelCase for private const variables, and I rec...
The tilde operator in C
...tmask? that's how my bit reader is doing it, but it's touchy. I read that if you have X and NOT it, then subtract one you'll get the unsigned version of a signed number, is that not correct?
– MarcusJ
Oct 21 '15 at 19:25
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How to use greater than operator with date?
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what happens if its timestamp?
– ichimaru
Jul 19 '18 at 6:16
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Java “params” in method signature?
In C#, if you want a method to have an indeterminate number of parameters, you can make the final parameter in the method signature a params so that the method parameter looks like an array but allows everyone using the method to pass as many parameters of that type as the caller wants.
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rails 3 validation on uniqueness on multiple attributes
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I would add that if you want to use :scope on foreign keys, you need to use the :fkey_id symbols, instead of :fkey ones, even if a "basic" :uniqueness works on :fkey
– nbarraille
Sep 7 '12 at 2:48
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