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What version of javac built my jar?
..., and it could have been built in any one of three JDKs. We need to know exactly which one, so we can certify compatibility. Is the compiler version embedded somewhere in the class files or jar?
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How to customise file type to syntax associations in Sublime Text?
I'd like Sublime 2 editor to treat *.sbt files (to highlight syntax) as Scala language, same as *.scala, but I can't find where to set this up. Do you happen to know?
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Is there a C++ gdb GUI for Linux? [closed]
...oo powerful, and it's just too well integrated inside the IDE.
For a Linux alternative, try DDD if free software is your thing.
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Android Studio quick documentation always “fetching documentation”
...en the documentation is already downloaded.
The default link in jdk.table.xml is http://developer.android.com/reference/ (android studio tries to connect to this online server even if the network is blocked).
To solve the problem, we can just redirect the reference to local source.
MacOS
On MacO...
Unicode (UTF-8) reading and writing to files in Python
I'm having some brain failure in understanding reading and writing text to a file (Python 2.4).
14 Answers
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Convert number strings with commas in pandas DataFrame to float
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But this works: df.apply(lambda x: x.str.replace(',', '').astype(float), axis=1)
– krassowski
Nov 21 '19 at 16:03
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Why does a function with no parameters (compared to the actual function definition) compile?
...default to int (even the return type). It is perfectly ok to call func(42,0x42); (where all calls must use the two args form).
– Jens
Dec 19 '12 at 14:20
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How Can I Set the Default Value of a Timestamp Column to the Current Timestamp with Laravel Migratio
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Given it's a raw expression, you should use DB::raw() to set CURRENT_TIMESTAMP as a default value for a column:
$table->timestamp('created_at')->default(DB::raw('CURRENT_TIMESTAMP'));
This works flawlessly on every database driver.
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SELECT DISTINCT on one column
...DISTINCT [ID] = ( SELECT TOP 1 [ID] FROM @TestData Y WHERE Y.[Product] = X.[Product])
,[SKU]= ( SELECT TOP 1 [SKU] FROM @TestData Y WHERE Y.[Product] = X.[Product])
,[PRODUCT]
FROM @TestData X
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What does the constant 0.0039215689 represent?
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0.0039215689 is approximately equal to 1/255.
Seeing that this is OpenGL, performance is probably important. So it's probably safe to guess that this was done for performance reasons.
Multiplying by the reciprocal is faster than repeatedly divi...