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target=“_blank” vs. target=“_new”
What's the difference between <a target="_new"> and <a target="_blank"> and which should I use if I just want to open a link in a new tab/window?
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How does C compute sin() and other math functions?
I've been poring through .NET disassemblies and the GCC source code, but can't seem to find anywhere the actual implementation of sin() and other math functions... they always seem to be referencing something else.
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Difference between a user and a schema in Oracle?
What is the difference between a user and a schema in Oracle?
15 Answers
15
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Remove element of a regular array
... index + 1, dest, index, source.Length - index - 1);
return dest;
}
And use it like:
Foo[] bar = GetFoos();
bar = bar.RemoveAt(2);
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Execute command without keeping it in history [closed]
I want to execute some commands but don't want to store them in the command history. So that nobody will be able to search it in the .bash_history file.
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How does MySQL process ORDER BY and LIMIT in a query?
...ments, the first argument specifies the offset of the first row to return, and the second specifies the maximum number of rows to return. The offset of the initial row is 0 (not 1):
SELECT * FROM tbl LIMIT 5,10; # Retrieve rows 6-15
To retrieve all rows from a certain offset up to the end of the...
Elegant way to check for missing packages and install them?
...de with coauthors these days. Many of them are novice/intermediate R users and don't realize that they have to install packages they don't already have.
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Detect If Browser Tab Has Focus
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Yes, window.onfocus and window.onblur should work for your scenario:
http://www.thefutureoftheweb.com/blog/detect-browser-window-focus
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How can I determine if a variable is 'undefined' or 'null'?
...}
Because null == undefined is true, the above code will catch both null and undefined.
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How do I lowercase a string in Python?
...y2casefold - several answers address this here.
Unicode Python 3
Python 3 handles plain string literals as unicode:
>>> string = 'Километр'
>>> string
'Километр'
>>> string.lower()
'километр'
Python 2, plain string literals are bytes
In Python 2, t...