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Regex not operator
...ver:
\((?!2001)[0-9a-zA-z _\.\-:]*\)
The (?!...) part means "only match if the text following (hence: lookahead) this doesn't (hence: negative) match this. But it doesn't actually consume the characters it matches (hence: zero-width).
There are actually 4 combinations of lookarounds with 2 axes:...
How do I find the width & height of a terminal window?
... That does not work in anything but the interactive bash session (if you run the script it is not interactive any longer). The only place you can use it in a script is the prompt_command in bash.
– Doncho Gunchev
Feb 28 '14 at 7:59
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Where does gcc look for C and C++ header files?
... where it looks for includes.
You will get a reliable answer for your specific setup.
Likewise, for the C preprocessor:
`gcc -print-prog-name=cpp` -v
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Compare DATETIME and DATE ignoring time portion
...e new DATE data type in SQL Server 2008 to compare just the date portion:
IF CAST(DateField1 AS DATE) = CAST(DateField2 AS DATE)
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convert '1' to '0001' in JavaScript [duplicate]
...gth - str.length) + str
JavaScript is more forgiving than some languages if the second argument to substring is negative so it will "overflow correctly" (or incorrectly depending on how it's viewed):
That is, with the above:
1 -> "0001"
12345 -> "12345"
Supporting negative numbers is le...
Disable individual Python unit tests temporarily
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In Python 3, Akif's answer below @unittest.SkipTest works and not @unittest.skip
– lifebalance
May 13 '17 at 18:48
7
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How to read integer value from the standard input in Java
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If you are using Java 6, you can use the following oneliner to read an integer from console:
int n = Integer.parseInt(System.console().readLine());
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HTML5 Local storage vs. Session storage
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localStorage and sessionStorage both extend Storage. There is no difference between them except for the intended "non-persistence" of sessionStorage.
That is, the data stored in localStorage persists until explicitly deleted. Changes made are saved and available for all current and future ...
How to toggle a boolean?
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@user2846569, if you're toggling the boolean, that means that by nature the variable has already been initialized. You could expand it to bool = !bool || true; to have a default, I suppose.
– Jordan
M...
Tool to read and display Java .class versions
...o.class");
DataInputStream data = new DataInputStream(in)) {
if (0xCAFEBABE != data.readInt()) {
throw new IOException("invalid header");
}
int minor = data.readUnsignedShort();
int major = data.readUnsignedShort();
System.out.println(major + "." + minor...