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How can strings be concatenated?
... @pyCthon: Huh? You can put a line break in a string using \n or you can do a line continuation in Python by putting a \ at the end of the line.
– mpen
Nov 28 '13 at 20:45
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Copy array items into another array
...ray dataArray which I want to push into a new array newArray . Except I don't want newArray[0] to be dataArray . I want to push in all the items into the new array:
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quick random row selection in Postgres
...to experiment with OFFSET, as in
SELECT myid FROM mytable OFFSET floor(random()*N) LIMIT 1;
The N is the number of rows in mytable. You may need to first do a SELECT COUNT(*) to figure out the value of N.
Update (by Antony Hatchkins)
You must use floor here:
SELECT myid FROM mytable OFFSET floo...
Create singleton using GCD's dispatch_once in Objective-C
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How do you release it though?
– samvermette
Jan 10 '12 at 23:20
65
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How to show a dialog to confirm that the user wishes to exit an Android Activity?
I've been trying to show a "Do you want to exit?" type of dialog when the user attempts to exit an Activity.
11 Answers
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Fastest way to find second (third…) highest/lowest value in vector or column
R offers max and min, but I do not see a really fast way to find another value in the order, apart from sorting the whole vector and then picking a value x from this vector.
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What column type/length should I use for storing a Bcrypt hashed password in a Database?
...or information about the difference).
CHAR is not binary safe and equality does not depend solely on the byte value but on the actual collation; in the worst case A is treated as equal to a. See The _bin and binary Collations for more information.
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How can you speed up Eclipse?
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Launching it with the latest JDK (Java 14 at the time of writing, which does not prevent you to compile in your Eclipse project with any other JDK you want: 1.4.2, 1.5, 1.6 older...)
-vm jdk1.6.0_10\jre\bin\client\jvm.dll
Configuring the eclipse.ini (see this question for a complete eclipse.i...
What represents a double in sql server?
I have a couple of properties in C# which are double and I want to store these in a table in SQL Server, but noticed there is no double type, so what is best to use, decimal or float ?
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Change URL parameters
...nalURL + rows_txt;
}
Function Calls:
var newURL = updateURLParameter(window.location.href, 'locId', 'newLoc');
newURL = updateURLParameter(newURL, 'resId', 'newResId');
window.history.replaceState('', '', updateURLParameter(window.location.href, "param", "value"));
Updated version that also ta...