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Haskell Type vs Data Constructor
... totally different. So you might do something like this:
data Config = XML_Config {...} | JSON_Config {...}
(With some suitable fields in there, obviously.) You can't do stuff like this in normal programming languages, which is why most people aren't used to it.
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How do I check if an index exists on a table field in MySQL?
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SHOW INDEX FROM my_table WHERE Key_name = 'index_to_check';
– mit
Nov 13 '10 at 2:58
6
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How to play a notification sound on websites?
...bed):
let src = 'https://file-examples.com/wp-content/uploads/2017/11/file_example_MP3_700KB.mp3';
let audio = new Audio(src);
audio.play();
See more here.
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Does a finally block always run?
...led. Is there a catch that I am missing? download.oracle.com/docs/cd/E17476_01/javase/1.5.0/docs/guide/…
– spurserh
Jul 18 '10 at 14:40
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Bash command to sum a column of numbers [duplicate]
...0s
user 2m26.230s
sys 0m0.660s
bash-2.03$ time perl -nle'
$s += $_; END { print $s }
' infile
1.249999925e+15
real 1m34.663s
user 1m33.710s
sys 0m0.650s
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Redirect Windows cmd stdout and stderr to a single file
...'re using these to make log files, then unless you're sending the outut to _uniquely_named_ (eg date-and-time-stamped) log files, then if you run the same process twice, the redirected will overwrite (replace) the previous log file.
The >> (for either STDOUT or STDERR) will APPEND not REPLACE...
Gradle store on local file system
...the local file system? Maven stores them in the .m2 directory under USER_HOME , but where does Gradle store them? I checked the .gradle folder there, but saw only compiled scripts.
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How to get the build/version number of your Android application?
...cation's version this is two compicated. You should use BuildConfig.VERSION_** as suggested here.
– Timo Bähr
Jun 20 '16 at 12:23
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Where does Oracle SQL Developer store connections?
... file will have the details including passwords.
– AM_86
Jan 7 at 16:39
How to find decrypt Key . I am getting this to...
Regular Expression to match only alphabetic characters
...l make sure that nothing but these alphabets will be matched.
Code:
preg_match('/^[A-Z]+$/i', "abcAbc^Xyz", $m);
var_dump($m);
Output:
array(0) {
}
Test case is for OP's comment that he wants to match only if there are 1 or more alphabets present in the input. As you can see in the test case...