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Class type check in TypeScript

...ence of y (and in ActionScript 3.0, the prototype chain does not provide a complete picture of the inheritance hierarchy). TypeScript's instanceof shares the same problems. As it is a language which is still in its development I recommend you to state a proposal of such facility. See also: MDN: in...
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Create Django model or update if exists

...t answer Django already has a get_or_create, https://docs.djangoproject.com/en/dev/ref/models/querysets/#get-or-create For you it could be : id = 'some identifier' person, created = Person.objects.get_or_create(identifier=id) if created: # means you have created a new person else: # pers...
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Google App Engine: Is it possible to do a Gql LIKE query?

... < queries. (In fact you can also do != but the API does this using a a combination of > and < queries.) This is also why the development environment monitors all the queries you do and automatically adds any missing indexes to your index.yaml file. There is no way to index for a LIKE que...
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Is there a way to check which CSS styles are being used or not used on a web page?

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How to do URL decoding in Java?

... Be careful with this. As noted here: blog.lunatech.com/2009/02/03/… This is not about URLs, but for HTML form encoding. – Michal May 27 '15 at 12:29 ...
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Android: HTTP communication should use “Accept-Encoding: gzip”

I've a HTTP communication to a webserver requesting JSON data. I'd like compress this data stream with Content-Encoding: gzip . Is there a way I can set Accept-Encoding: gzip in my HttpClient? The search for gzip in the Android References doesn't show up anything related to HTTP, as you can see...
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How to convert a string or integer to binary in Ruby?

...hose confused by @decay's code like myself, he is using 'sprintf': apidock.com/ruby/Kernel/sprintf – Taylor Liss Sep 4 '18 at 0:15 ...
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Is there any haskell function to concatenate list with separator?

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How do I override __getattr__ in Python without breaking the default behavior?

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Is HTML5 localStorage asynchronous?

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