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How to check if a variable is null or empty string or all whitespace in JavaScript?
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What about using test() instead of match()? return str === null || (/^ *$/).test(str);
– Mario Levrero
Sep 24 '14 at 9:43
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Why is the Android emulator so slow? How can we speed up the Android emulator? [closed]
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UPDATE: The latest version of Android studio (2.x) made major improvements to the bundled emulator. It's responsive and has a whole bunch of features.
For those still interested:
Try using Genymotion. You can download a version for Win...
Retrieve version from maven pom.xml in code
...s meant to work dynamically in development environments, e.g. when used in tests or tools started from IDE or console. The accepted answer to this question shows several ways to package the version number statically into your artifacts. I was not assuming that pom.xml would be available within JARs ...
SELECT INTO Variable in MySQL DECLARE causes syntax error?
...lution for my problem. Here´s what helped:
DELIMITER //
CREATE PROCEDURE test ()
BEGIN
DECLARE myvar DOUBLE;
SELECT somevalue INTO myvar FROM mytable WHERE uid=1;
SELECT myvar;
END
//
DELIMITER ;
call test ();
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Parsing JSON with Unix tools
...tion, but that API no longer works, making it hard to copy the examples to test out, and the new Twitter API requires API keys, so I've switched to using the GitHub API which can be used easily without API keys. The first answer for the original question would be:
curl 'http://twitter.com/users/us...
How do I get the last character of a string?
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The code:
public class Test {
public static void main(String args[]) {
String string = args[0];
System.out.println("last character: " +
string.substring(string.length() - 1));
}
}
The output of ...
How to unzip a file using the command line? [closed]
...ory is in your path (in most cases), you can use the command line:
jar xf test.zip
or if not in your path:
C:\Java\jdk1.6.0_03\bin>jar xf test.zip
Complete set of options for the jar tool available here.
Examples:
Extract jar file
jar x[v]f jarfile [inputfiles] [-Joption]
jar x[v...
How to implement classic sorting algorithms in modern C++?
...erators.
Details omitted:
selection sort can be optimized with an early test if (std::distance(first, last) <= 1) return; (or for forward / bidirectional iterators: if (first == last || std::next(first) == last) return;).
for bidirectional iterators, the above test can be combined with a loop ...
What is a Shim?
... framework to isolate your application from other assemblies for unit testing. Shims divert calls to specific methods to code that you write as part of your test
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Rename a file in C#
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@SepehrM, I did not test it, but the samples you point to use FileInfo.Move and not File.Move so maybe that has something to do with it?
– Chris Taylor
Jul 7 '14 at 12:31
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