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JPA OneToMany not deleting child
...e JPA doesn't cater for it.
In part this is because JPA doesn't actually know if it should delete something removed from the collection. In object modeling terms, this is the difference between composition and "aggregation*.
In composition, the child entity has no existence without the parent. A c...
What is the JavaScript version of sleep()?
...ion was asked, JavaScript has evolved significantly. All other answers are now obsolete or overly complicated. Here is the current best practice:
function sleep(ms) {
return new Promise(resolve => setTimeout(resolve, ms));
}
async function demo() {
console.log('Taking a break...');...
What is the apply function in Scala?
...val f = (x:Int) => x + 1
Since everything is an object in Scala f can now be treated as a reference to Function1[Int,Int] object. For example, we can call toString method inherited from Any, that would have been impossible for a pure function, because functions don't have methods:
f.toString...
How do I parse an ISO 8601-formatted date?
... only) in ambiguous cases. So ONLY use it if you need to parse input of unknown format and are okay to tolerate occasional misreads.
– ivan_pozdeev
Apr 23 '15 at 23:34
2
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Differences between lodash and underscore [closed]
...ast 3 Backbone boilerplates that include Lo-Dash by default and Lo-Dash is now mentioned in Backbone’s official documentation.
Check out Kit Cambridge's post, Say "Hello" to Lo-Dash, for a deeper breakdown on the differences between Lo-Dash and Underscore.
Footnotes:
Underscore has inconsisten...
Sorting multiple keys with Unix sort
...
Whoops! Now I have to fix a script because earlier I only saw the first answer above...good thing I haven't depended on the script output yet....
– Wildcard
Nov 5 '15 at 6:22
...
scrollIntoView Scrolls just too far
...e wrong direction so all I had to do was change it from += 10 to -= 10 and now it's loading just right, thanks a lot for the help!!!!
– Matthew Wilson
Jul 10 '14 at 1:38
...
Statistics: combinations in Python
... N and K due to floating point precision. But we can fix that - see above, now it should not err for big numbers
– Nas Banov
Sep 17 '13 at 1:17
...
In .NET, which loop runs faster, 'for' or 'foreach'?
...
@Hardwareguy: Once you know that for is almost imperceptably faster, why shouldn't you start using it in general? It doesn't take extra time.
– DevinB
Sep 3 '09 at 13:06
...
How can HTML5 “replace” Flash? [closed]
.... Great way to bring us back to 1998. No thanks, I'll stick with Flash for now.
As much as open standards are a worthy goal, I don't see this panning out the way they are saying...
My two cents.
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