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Spring @Transactional - isolation, propagation
Can someone explain what isolation & propagation parameters are for in the @Transactional annotation via real-world example?
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Why is Swift compile time so slow?
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Well, it turned out that Rob Napier was right. It was one single file (actually one method) that was causing the compiler to go berzek.
Now don't get me wrong. Swift does recompile all your files each time, but the great thing now, is that Apple added real-time compilation feed...
Algorithm to compare two images
...tever format I choose), I need to write a program to predict the chance if one being the illegal copy of another. The author of the copy may do stuff like rotating, making negative, or adding trivial details (as well as changing the dimension of the image).
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Reusing output from last command in Bash
... @PatNeedham Not sure. Check loadable modules. See if you can write one.
– konsolebox
Jan 1 '19 at 13:55
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Can I run multiple programs in a Docker container?
... like to give Docker a try but I'm not sure how I'm meant to use more than one program. The documentations says there can only be only ENTRYPOINT so how can I have Mongo and my flask application. Or do they need to be in separate containers, in which case how do they talk to each other and how does ...
Remove multiple whitespaces
... are using \s\s+ which means whitespace(space, tab or newline) followed by one or more whitespace. Which effectively means replace two or more whitespace with a single space.
What you want is replace one or more whitespace with single whitespace, so you can use the pattern \s\s* or \s+ (recommend...
PHP: Move associative array element to beginning of array
...to join the original array to a new associative array using the known key (one).
$myArray = array('one' => $myArray['one']) + $myArray;
// or ['one' => $myArray['one']] + $myArray;
Array keys are unique, so it would be impossible for it to exist in two locations.
See further at the doc o...
How do you import classes in JSP?
....util.List in a JSP page. What do I need to do to use classes other than ones in java.lang ?
6 Answers
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What are the key differences between Apache Thrift, Google Protocol Buffers, MessagePack, ASN.1 and
...th binary and human-readable. Being an international standard (and an old one at that!) the source language is a bit kitchen-sinkish (in about the same way that the Atlantic Ocean is a bit wet) but it is extremely well-specified and has decent amount of support. (You can probably find an ASN.1 lib...
How to add 30 minutes to a JavaScript Date object?
..., 'm').toDate();
Vanilla Javascript
This is like chaos's answer, but in one line:
var newDateObj = new Date(oldDateObj.getTime() + diff*60000);
Where diff is the difference in minutes you want from oldDateObj's time. It can even be negative.
Or as a reusable function, if you need to do this i...