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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...
git - diff of current changes before committing
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git diff by default shows difference between your working directory and the index (staging area for the next commit).
If you have already added (staged) the changes to the staging area, git diff --staged does the job. Staging area i...
Java: possible to line break in a properties file?
...lement pair, which may be spread out across several adjacent natural lines by escaping the line terminator sequence with a backslash character \.
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prevent refresh of page when button inside form clicked
I have an issue while using buttons inside form. I want that button to call function. It does, but with unwanted result that it refresh the page.
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How to subtract 2 hours from user's local time?
...some particular timezones and timestamps (when the clock was moved forward by 2 or more hours)
– 4esn0k
yesterday
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Removing non-repository files with git?
...u can use git-clean. This command will remove untracked files/directories. By default, it will only print what it would have removed, without actually removing them.
Given the -f flag to remove the files, and the -d flag to remove empty directories as well :
git clean -df
Also removing ignored f...
Rebuild IntelliJ project indexes
...this in my case (Ultimate 2019.1) -- on restarting, it rebuild the indexes by itself.
An interesting side effect, apart from all imports and non-local references coming up as errors, was the error reported on all string literals:
Incompatible types.
Required: java.lang.String
Found: java.lang.S...
MbUnit under Linux, used within an F# project?
...roups says the post was successful). I suppose the list might be moderated by someone who does not read his email very often :-) Seeing as SO has tags for both Gallio and MbUnit, I thought it was worth asking here.
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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...
How to loop through all the properties of a class?
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VB version of C# given by Brannon:
Public Sub DisplayAll(ByVal Someobject As Foo)
Dim _type As Type = Someobject.GetType()
Dim properties() As PropertyInfo = _type.GetProperties() 'line 3
For Each _property As PropertyInfo In properti...