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SQL to determine minimum sequential days of access?
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(because NOBODY would do a SELECT *, we know adding this computed column will not affect the query plans unless the column is referenced... right guys?!?)
– IDisposable
Jul 24 '09 at 8:24
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How do you access the matched groups in a JavaScript regular expression?
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@MichaelMikowski now you've just hidden your infinite loop, but your code will run slow. I'd argue that it's better to have code break in a bad way so you catch it in development. Putting some bs maximum iterations break in is sloppy. Hidin...
What does O(log n) mean exactly?
...propriate spot in a new, empty phone book.
For the below examples, we're now at the printer's office. Phone books are waiting to be mailed to each resident or business, and there's a sticker on each phone book identifying where it should be mailed to. Every person or business gets one phone book.
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jQuery Selector: Id Ends With?
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If you know the element type then: (eg: replace 'element' with 'div')
$("element[id$='txtTitle']")
If you don't know the element type:
$("[id$='txtTitle']")
More information available
// the old way, needs exact ID: docu...
Can't start Eclipse - Java was started but returned exit code=13
... will find Java. Click on it and you will find all the different versions. Now you can select which one to uninstall.
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Label encoding across multiple columns in scikit-learn
...commended way is
OneHotEncoder().fit_transform(df)
as the OneHotEncoder now supports string input.
Applying OneHotEncoder only to certain columns is possible with the ColumnTransformer.
EDIT:
Since this answer is over a year ago, and generated many upvotes (including a bounty), I should probabl...
IOException: read failed, socket might closed - Bluetooth on Android 4.3
...b/android-4.3_r2/core/java/android/bluetooth/BluetoothDevice.java#L1037).
Now, when I receive that exception, I instantiate a fallback BluetoothSocket, similar to the source code below. As you can see, invoking the hidden method createRfcommSocket via reflections. I have no clue why this method is ...
Check if a variable is of function type
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This answer is a bit misleading now, as Underscore.js is now on revision 12, not the above-referenced revision 4, of its test of alternative isFunction() implementations. It currently uses something very close to what dandean suggested.
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PHP Regex to get youtube video ID?
...ment. In this case we're interested in the query, which is PHP_URL_QUERY.
Now we have the query, which is v=C4kxS1ksqtw&feature=relate, but we only want the part after v=. For this we turn to parse_str which basically works like GET on a string. It takes a string and creates the variables speci...
Most efficient way to create a zero filled JavaScript array?
...sional arrays and it seemed to greatly speed up my test cases. Having just now done some more testing on FF41 and Chrome45.0.2454.99 m. Yes, I guess I really needed more space to explain myself. Most of my testing was bias I will admit. But, check this out. Predefine a var and using just this line (...