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How to sort an array in Bash
...espace (except newlines)
Note readarray is supported in bash 4+.
Edit Based on the suggestion by @Dimitre I had updated it to:
readarray -t sorted < <(printf '%s\0' "${array[@]}" | sort -z | xargs -0n1)
which has the benefit of even understanding sorting elements with newline character...
In MySQL queries, why use join instead of where?
...t for JOIN types other than INNER, making queries easy to use on other databases
WHERE clause only serves as filtration of the cartesian product of the tables joined
From a Design Perspective:
ANSI-92 JOIN syntax is pattern, not anti-pattern:
The purpose of the query is more obvious; the colu...
What's the difference between @JoinColumn and mappedBy when using a JPA @OneToMany association
...whichever generation you think fits your needs. If you're on a legacy database and don't want to change the structure, pick whichever matches your schema.
– Snekse
Mar 7 '17 at 16:36
...
How can you debug a CORS request with cURL?
...
The bash script "corstest" below works for me. It is based on Jun's comment above.
usage
corstest [-v] url
examples
./corstest https://api.coindesk.com/v1/bpi/currentprice.json
https://api.coindesk.com/v1/bpi/currentprice.json Access-Control-Allow-Origin: *
the positiv...
Get real path from URI, Android KitKat new storage access framework [duplicate]
...Documents, as well as the _data field for the MediaStore and
* other file-based ContentProviders.
*
* @param context The context.
* @param uri The Uri to query.
* @author paulburke
*/
public static String getPath(final Context context, final Uri uri) {
final boolean isKitKat = Build.VERSI...
Why don't self-closing script elements work?
...any hours digging into bug reports and mailing lists.
HTML 4
HTML 4 is based on SGML.
SGML has some shorttags, such as <BR//, <B>text</>, <B/text/, or <OL<LI>item</LI</OL>.
XML takes the first form, redefines the ending as ">" (SGML is flexible), so that i...
What is the apply function in Scala?
...
Types in Scala can usually be inferred based on the arguments, but if not you can supply them via the square brackets. so when instantiating an Average object you could say "val avg = new Average[Int](0)"
– Angelo Genovese
Ju...
What is the difference between _tmain() and main() in C++?
...on unicode-ready (I prefer the term of unicode-ready to -aware), if it was based on char s before. If your application directly uses wchar_t then your application is unicode.
– paercebal
May 14 '10 at 16:49
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What exactly is Arel in Rails 3.0?
...up question. You mentioned LDAP, AMZ, etc. above, I assume that currently (based on rails/arel on github) ARel does not have that capability, just the potential? i.e. until someone implements that part. This does sound super exciting though.
– Will
May 5 '10 at...
Defining a HTML template to append using JQuery
...;Bar</td>
<tr>
</script>
Using jQuery, adding rows based on the template would resemble:
var template = $('#hidden-template').html();
$('button.addRow').click(function() {
$('#targetTable').append(template);
});
...