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What do REFRESH and MERGE mean in terms of databases?
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REFRESH means "pull any state changes from the database into my representation". Cascading this is simple; it means that all associated entities are refreshed.
MERGE means something complex that approximates "save" but is more like "push this detached entity ba...
Show and hide a View with a slide up/down animation
... facing same issue what Ram was facing, at first time it works fine but from next time when i make that view in gone state and try to make that view visible again it doesn't appear.
– Pankaj kumar
Aug 8 '16 at 10:35
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What's the best way to retry an AJAX request on failure using jQuery?
...'t get called on the retry. Here's my solution, which is heavily borrowed from @cjpak's answer here. In my case I want to retry when AWS's API Gateway responds with 502 error.
const RETRY_WAIT = [10 * 1000, 5 * 1000, 2 * 1000];
// This is what tells JQuery to retry $.ajax requests
// Ideas for...
Add a new element to an array without specifying the index in Bash
... all remaining elems. starting at the following elem.: - If start >= 0: from the elem. whose index is >= start. - If start < 0: from the elem. whose index is (last array index + 1) - abs(start); CAVEAT: if abs(start) > (last array index + 1), a null string is returned. If count is specif...
How should I read a file line-by-line in Python?
...y.
In such an implementation, you might get a "too many files open" error from the OS if your code opens files faster than the garbage collector calls finalizers on orphaned file handles. The usual workaround is to trigger the GC immediately, but this is a nasty hack and it has to be done by every...
FileNotFoundException while getting the InputStream object from HttpURLConnection
...his and it returns status 404. But strangely, it's also saving in DB! Also from what you mention, does it mean any REST service will only return a status code ? What if i want to return back more information such as a xml validation error message or a url if the post is successful ?
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Double decimal formatting in Java
...ause of the default language used by your JVM, which is probably different from those of Nambari. Have a look at NumberFormat javadoc : docs.oracle.com/javase/1.4.2/docs/api/java/text/…
– Michael Zilbermann
Oct 9 '12 at 18:54
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NumPy or Pandas: Keeping array type as integer while having a NaN value
...t to work with float series where possible, even when the series is upcast from int to float due to inclusion of NaN values. This enables vectorised NumPy-based calculations where, otherwise, Python-level loops would be processed.
The docs do suggest : "One possibility is to use dtype=object arrays...
Meaning of Git checkout double dashes
...changed branches instead. The -- separates the tree you want to check out from the files you want to check out.
git checkout -- master
It also helps us if some freako added a file named -f to our repository:
git checkout -f # wrong
git checkout -- -f # right
This is documented in git-c...
Looping through array and removing items, without breaking for loop
... the next item in the iteration, since the indexing affects only the items from the current point to the end of the Array, and the next item in the iteration is lower than the current point.
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