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What is a “symbol” in Julia?
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Symbols in Julia are the same as in Lisp, Scheme or Ruby. However, the answers to those related questions are not really satisfactory, in my opinion. If you read those answers, it seems that the reason a symbol is different than a string is that strings are mutable while symbols...
App Inventor 2 CustomWebView 拓展：高级版Web浏览器，完美浏览现代Web前...
...umberOfMatches’ and ‘isDoneCounting’
GotCertificate(isSecure,issuedBy,issuedTo,validTill)
Event raised after getting SSL certificate of current displayed url/website with boolean ‘isSecure’ and Strings ‘issuedBy’,’issuedTo’ and ‘validTill’.If ‘isSecure’ is false and oth...
Doing something before program exit
... the docs: Note The exit function is not called when the program is killed by a signal, when a Python fatal internal error is detected, or when os._exit() is called.
– Katriel
Oct 3 '10 at 15:12
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How to remove all callbacks from a Handler?
I have a Handler from my sub-Activity that was called by the main Activity . This Handler is used by sub-classes to postDelay some Runnables, and I can't manage them. Now, in the onStop event, I need to remove them before finishing the Activity (somehow I called finish() , but it still call ...
HTML: How to limit file upload to be only images?
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HTML5 File input has accept attribute and also multiple attribute. By using multiple attribute you can upload multiple images in an instance.
<input type="file" multiple accept='image/*'>
You can also limit multiple mime types.
<input type="file" multiple accept='image/*|audio/*...
When does ADT set BuildConfig.DEBUG to false?
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Currently you can get the correct behavior by disabling "Build Automatically", cleaning the project and then export via "Android Tools -> Export Signed Application Package". When you run the application BuildConfig.DEBUG should be false.
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How to use subprocess popen Python
Since os.popen is being replaced by subprocess.popen, I was wondering how would I convert
3 Answers
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Cryptic “Script Error.” reported in Javascript in Chrome and Firefox
...14): You can now enable full cross-domain error reporting on some browsers by specifying a crossorigin attribute on script tags and having the server send the appropriate CORS HTTP response headers.
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What are the differences between Deferred, Promise and Future in JavaScript?
...rred especially useful when dealing with e.g. templates that are populated by asynchronous requests, loading scripts that have networks of dependencies, and providing user feedback to form data in a non-blocking manner.
Indeed, compare the pure callback form of doing something after loading CodeMir...
Why does Sql Server keep executing after raiserror when xact_abort is on?
I just got surprised by something in TSQL. I thought that if xact_abort was on, calling something like
4 Answers
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