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POST data in JSON format
I have some data that I need to convert to JSON format and then POST it with a JavaScript function.
4 Answers
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HttpSecurity, WebSecurity and AuthenticationManagerBuilder
...rride configure(HttpSecurity) , configure(WebSecurity) and configure(AuthenticationManagerBuilder) ?
2 Answers
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Proper use of 'yield return'
...nt amounts of intermediate state (say a HashSet for duplicate elimination) then the use of yield can inflate your memory footprint.
– Kennet Belenky
Sep 11 '12 at 17:15
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How to fix the Hibernate “object references an unsaved transient instance - save the transient insta
...asn't saved in the database yet. So when I added the Child to the Parent, then saved the Parent, Hibernate would toss the "object references an unsaved transient instance - save the transient instance before flushing" message when saving the Parent.
Adding in the cascade = {CascadeType.ALL} on the...
Why does Apple recommend to use dispatch_once for implementing the singleton pattern under ARC?
...e 100% certain that nobody ever calls that method from a different thread, then it works. But using dispatch_once() is really simple (especially because Xcode will even autocomplete it into a full code snippet for you) and means you never even have to consider whether the method needs to be thread-s...
Remove unused imports in Android Studio
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Simple, right click on your project in Android Studio, then click on the Optimize Imports that should work.
Update
To do same thing which I described above, you can do same just pressing Ctrl+Alt+O, it will optimize imports of your current file and your entire project depends...
Android: create a popup that has multiple selection options
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You can create a String array with the options you want to show there and then pass the array to an AlertDialog.Builder with the method setItems(CharSequence[], DialogInterface.OnClickListener).
An example:
String[] colors = {"red", "green", "blue", "black"};
AlertDialog.Builder builder = new Al...
Download a file with Android, and showing the progress in a ProgressDialog
... the download.
Unless you need detailed control of the download process, then consider using DownloadManager (3) because it already handles most of the items listed above.
But also consider that your needs may change. For example, DownloadManager does no response caching. It will blindly download...
Count all occurrences of a string in lots of files with grep
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This one shows the relevant files and then the total count of matches: grep -rc test . | awk -F: '$NF > 0 {x+=$NF; $NF=""; print} END{print "Total:",x}'
– Yaron
Sep 6 '17 at 11:40
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How to redirect a url in NGINX
... Question, how should the server blocks be ordered? the redirect then the main server block or main server block then the redirect? Because I have the same problem, stackoverflow.com/questions/35451929/…
– jhnferraris
Feb 17 '16 at 10:54
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