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Coalesce function for PHP?
...esce function (returns the first non-NULL value, example ). PHP, sadly in 2009, does not.
9 Answers
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Are Java static calls more or less expensive than non-static calls?
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(Larger number of iterations is better.)
Success time: 3.12 memory: 320576 signal:0
Name | Iterations
VirtualTest | 128009996
NonVirtualTest | 301765679
StaticTest | 352298601
Done.
As expected, virtual method calls are the slowest, non-virtual method calls are faste...
How can I check if a Perl array contains a particular value?
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– Paused until further notice.
Apr 27 '13 at 20:41
15
@DennisWilliamson ...and in 5.18 it's considered exp...
How does database indexing work? [closed]
...ase of r = 5,000,000 records of a fixed size giving a record length of R = 204 bytes and they are stored in a table using the MyISAM engine which is using the default block size B = 1,024 bytes. The blocking factor of the table would be bfr = (B/R) = 1024/204 = 5 records per disk block. The total nu...
Go to first line in a file in vim?
...ift-g
– Nigel B. Peck
Dec 23 '16 at 20:22
3
gg does a "soft" beginning of first line, if there is...
Can I unshelve to a different branch in tfs 2008?
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answered Sep 22 '08 at 20:24
Curt HagenlocherCurt Hagenlocher
19.5k88 gold badges5656 silver badges4949 bronze badges
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Cannot find module cv2 when using OpenCV
...de pip this was my wattle
– mrk
Jun 20 '17 at 12:30
4
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UINavigationBar Hide back Button Text
...e of your own
– Pratik Jamariya
Sep 20 '17 at 18:44
2
If Back Button is already blank in IB, just...
Advantages to Using Private Static Methods
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20
I'd go as far as saying: "If a method doesn't need state access (this), make it static" as a general rule.
– DanMan
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Take a screenshot of a webpage with JavaScript?
...(not the whole page)?
– trusktr
Feb 20 '12 at 8:59
Yes you can. Either use this snippet with PhantomJS or use CasperJS...