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Is double square brackets [[ ]] preferable over si<em>nem>gle square brackets [ ] i<em>nem> Bash?
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[[ has fewer surprises <em>a<em>nem>dem> is ge<em>nem>erally safer to use. But it is <em>nem>ot portable - P<em>OSem>IX does<em>nem>'t specify what it does <em>a<em>nem>dem> o<em>nem>ly some shells support it (beside bash, I heard ksh supports it too). For example, you ca<em>nem> do
[[ -e $b ]]
to test whether a ...
Java dy<em>nem>amic array sizes?
...e it <em>nem>eeds to grow i<em>nem> size. Whe<em>nem> it does you'll have to allocate a <em>nem>ew o<em>nem>e <em>a<em>nem>dem> copy the data from the old to the <em>nem>ew:
i<em>nem>t[] oldItems = <em>nem>ew i<em>nem>t[10];
for (i<em>nem>t i = 0; i < 10; i++) {
oldItems[i] = i + 10;
}
i<em>nem>t[] <em>nem>ewItems = <em>nem>ew i<em>nem>t[20];
System.arraycopy(oldItems, 0, <em>nem>ewItems, 0, 10);
oldItems = ...
How to sparsely checkout o<em>nem>ly o<em>nem>e si<em>nem>gle file from a git rep<em>osem>itory?
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Origi<em>nem>ally, I me<em>nem>tio<em>nem>ed i<em>nem> 2012 git archive (see Jared Forsyth's a<em>nem>swer <em>a<em>nem>dem> Robert K<em>nem>ight's a<em>nem>swer), si<em>nem>ce git1.7.9.5 (March 2012), Paul Bra<em>nem><em>nem>a<em>nem>'s a<em>nem>swer:
git archive --format=tar --remote=origi<em>nem> HEAD:path/to/directory -- file<em>nem>ame | tar -O -xf -
But: i<em>nem> 2013, that was <em>nem>o lo<em>nem>ger p<em>osem>sible for re...
How to remove items from a list while iterati<em>nem>g?
I'm iterati<em>nem>g over a list of tuples i<em>nem> Pytho<em>nem>, <em>a<em>nem>dem> am attempti<em>nem>g to remove them if they meet certai<em>nem> criteria.
26 A<em>nem>swers
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What is a “callable”?
...ue, yet o will still <em>nem>ot be callable because Pytho<em>nem> skips __getattribute__ <em>a<em>nem>dem> __getattr__ for calls. The o<em>nem>ly real way left to check if somethi<em>nem>g is callable is thus EAFP.
– L̲̳o̲̳̳<em>nem>̲̳̳g̲̳̳p̲̳o̲̳̳k̲̳̳e̲̳̳
Jul 1 '10 at 23:03
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How ca<em>nem> I improve my paw detectio<em>nem>?
...ghtly more work.
The two a<em>nem>imatio<em>nem>s below show your "Overlappi<em>nem>g Paws" <em>a<em>nem>dem> "Grouped Paws" example data. This method seems to be worki<em>nem>g perfectly. (<em>A<em>nem>dem> for whatever it's worth, this ru<em>nem>s much more smoothly tha<em>nem> the GIF images below o<em>nem> my machi<em>nem>e, so the paw detectio<em>nem> algorithm is fairly fast......
Hidde<em>nem> Features of Java
...e per-thread state.
Si<em>nem>ce JDK 1.5 Java has had extremely well impleme<em>nem>ted <em>a<em>nem>dem> robust co<em>nem>curre<em>nem>cy tools beyo<em>nem>d just locks, they live i<em>nem> java.util.co<em>nem>curre<em>nem>t <em>a<em>nem>dem> a specifically i<em>nem>teresti<em>nem>g example is the java.util.co<em>nem>curre<em>nem>t.atomic subpackage that co<em>nem>tai<em>nem>s thread-safe primitives that impleme<em>nem>t the co...
jQuery <em>a<em>nem>dem> AJAX respo<em>nem>se header
So I've got this jQuery AJAX call, <em>a<em>nem>dem> the respo<em>nem>se comes from the server i<em>nem> the form of a 302 redirect. I'd like to take this redirect <em>a<em>nem>dem> load it i<em>nem> a<em>nem> iframe, but whe<em>nem> I try to view the header i<em>nem>fo with a javascript alert, it comes up <em>nem>ull, eve<em>nem> though firebug sees it correctly.
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Co<em>nem>vert o<em>nem>e date format i<em>nem>to a<em>nem>other i<em>nem> PHP
...wever, eve<em>nem> strtotime() does<em>nem>'t recog<em>nem>ize the y-m-d-h-i-s format.
PHP 5.3 <em>a<em>nem>dem> up
Use DateTime::createFromFormat. It allows you to specify a<em>nem> exact mask - usi<em>nem>g the date() sy<em>nem>tax - to parse i<em>nem>comi<em>nem>g stri<em>nem>g dates with.
PHP 5.2 <em>a<em>nem>dem> lower
You will have to parse the eleme<em>nem>ts (year, mo<em>nem>th, day, hour, ...
PHP Redirect with P<em>OSem>T data
I did some research o<em>nem> this topic, <em>a<em>nem>dem> there are some experts who have said that it is <em>nem>ot p<em>osem>sible , so I would like to ask for a<em>nem> alter<em>nem>ative solutio<em>nem>.
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