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What does the constant 0.0039215689 represent?
...bly safe to guess that this was done for performance reasons.
Multiplying by the reciprocal is faster than repeatedly dividing by 255.
Side Note:
If you're wondering why such a micro-optimization isn't left to the compiler, it's because it is an unsafe floating-point optimization. In other word...
What does the keyword Set actually do in VBA?
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Off the top of my head, Set is used to assign COM objects to variables. By doing a Set I suspect that under the hood it's doing an AddRef() call on the object to manage it's lifetime.
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ALTER DATABASE failed because a lock could not be placed on database
...you provide any explanation as to why a connection would not be terminated by the command? The only reason I can think would be that it is still in the process of rolling back or it is a set single_user attempt that is still pending.
– Martin Smith
Jan 12 '11 a...
How to determine if a number is odd in JavaScript
..., but it would be better if the function returned true or false as implied by the name "isOdd".
– nnnnnn
Aug 13 '12 at 2:02
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About .bash_profile, .bashrc, and where should alias be written in? [duplicate]
... tell it to. You can reload the .bashrc file (and not need a second shell) by typing
source ~/.bashrc
which loads the .bashrc file as if you had typed the commands directly to Bash.
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Make Bootstrap Popover Appear/Disappear on Hover instead of Click
...ne.
This can be done using either data-* attributes in the markup:
<a id="popover" data-trigger="hover">Popover</a>
Or with an initialization option:
$("#popover").popover({ trigger: "hover" });
Here's a DEMO.
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Where are ${EXECUTABLE_NAME} and ${PRODUCT_NAME} defined
...the target's Build Settings in the Packaging section. It has the same name by default as your project.
Edit:
While PRODUCT_NAME is by default the name of the Target (MyDemoApp in this case). The EXECUTABLE_NAME is a concatenation of:
$EXECUTABLE_PREFIX, $PRODUCT_NAME and $EXECUTABLE_SUFFIX.
Se...
Download old version of package with NuGet
... filter:
Get-Package -ListAvailable -Filter Common.Logging -AllVersions
By pressing tab after the version option in the Install-Package command, you get a list of the latest available versions.
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What is the IntelliJ shortcut to create a local variable?
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Yep! This is the Introduce Variable refactoring. By default, select some text, and then hit Ctrl + Alt + V (for Mac: ⌘+⌥+V). If the expression is incomplete or invalid, IntelliJ will still make a good guess about what you meant and try to fix it for you.
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Is it valid to have a tag inside another tag?
... sectioning content, instead of relying on the implicit sections generated by having multiple headings in one element of sectioning content and nested <section>'s are allowed.
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