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Greedy vs. Reluctant vs. Possessive Quantifiers
...acks one more step (leaving the "foo" at the end of the string unmatched). Now, the matcher finally matches the f in the regex, and the o and the next o are matched too. Success!
A reluctant or "non-greedy" quantifier first matches as little as possible. So the .* matches nothing at first, leaving ...
How do I remove the file suffix and path portion from a path string in Bash?
... I guess the 'man bash' explanation makes sense if you already know what it does or if you tried it out yourself the hard way. It's almost as bad as git reference. I'd just google it instead.
– triplebig
Sep 28 '16 at 5:37
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What does “var FOO = FOO || {}” (assign a variable or an empty object to that variable) mean in Java
...times. If the <script> tags have the defer attribute set you can't know in which order they'll be interpreted, so as described above this fixes that problem too.
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How to wait for a BackgroundWorker to cancel?
...= "Rocket launch aborted.";
}
worker = null;
}
And all is good.
Now comes a situation where the caller needs to abort the countdown because they need to execute an emergency self-destruct of the rocket.
private void BlowUpRocket()
{
if (worker != null)
{
worker.CancelAsyn...
Can't pickle when using multiprocessing Pool.map()
... have progressed some way, anyhow: Using the code at pastebin.ca/1693348 I now get a RuntimeError: maximum recursion depth exceeded. I looked around and one forum post recommended increasing the maximum depth to 1500 (from the default 1000) but I had no joy there. To be honest, I can't see what part...
Using -performSelector: vs. just calling the method
... performSelector is also useful to suppress compile warnings. If you know the method exists (like after using respondsToSelector), it will stop Xcode from saying "may not respond to your_selector". Just don't use it instead of finding out the real cause of the warning. ;)
–...
Use of Initializers vs Constructors in Java
...kills as of late and have found a few bits of functionality that I didn't know about previously. Static and Instance Initializers are two such techniques.
...
How to change the default encoding to UTF-8 for Apache?
...icle.
AddDefaultCharset utf-8
But I have to use Chinese characters
now and then. Previously, I translated
Chinese characters to Unicode code and
include it in the document using the
&# hack. But it is only useful for
page having a few characters.
There is a better way to do ...
Declaring abstract method in TypeScript
...e property is marked as protected. This was added in TypeScript 1.3 and is now firmly established.
The makeSound method is marked as abstract, as is the class. You cannot directly instantiate an Animal now, because it is abstract. This is part of TypeScript 1.6, which is now officially live.
abstr...
FIND_IN_SET() vs IN()
..."aname".
Let's take table B which has columns named "bid","bname","aids".
Now there are dummy values in Table A and Table B as below.
Table A
aid aname
1 Apple
2 Banana
3 Mango
Table B
bid bname aids
1 Apple 1,2
2 Banana 2,1
3 Mango 3,1,2
enter code here
Case...