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How do browsers pause/change Javascript when tab or window is not active?

... does not matter whether the window is out of focus or not. Edge Starting from Edge 14, setInterval is capped at 1000ms in inactive tabs. requestAnimationFrame is always paused in inactive tabs. Safari Just like Chrome, Safari caps setInterval at 1000ms when the tab is inactive. requestAnimationFr...
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How to change field name in Django REST Framework

...erializers in general called 'source' where you can specify source of data from the model field. class ParkSerializer(serializers.ModelSerializer): location = serializers.SomeSerializerField(source='alternate_name') class Meta: model = Park fields = ('other_fields', 'locat...
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How to extract a substring using regex

... (i.e. group(1) is correct in the answer). "Capturing groups are indexed from left to right, starting at one. Group zero denotes the entire pattern" - Source: docs.oracle.com/javase/8/docs/api/java/util/regex/… – Apriori Apr 18 '17 at 6:48 ...
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Is it safe to assume a GUID will always be unique?

...ill more likely to get hit by a meteorite than to have even one collision (from Wikipedia). And if you aren't generating them randomly, but are e.g. using the MAC-address-and-time-stamp algorithm, then they're also going to be unique, as MAC addresses are unique among computers and time stamps are ...
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When to use StringBuilder in Java [duplicate]

... now. HOWEVER switching to explicit StringBuilder 1 instance gave me 0-1ms from ~120ms on 1000 iterations. So StringBuilder is still necessary for critical places in similar cases. – serg.nechaev Mar 3 '15 at 3:22 ...
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What is causing ERROR: there is no unique constraint matching given keys for referenced table?

...work I really should be defining a compound primary key, but I backed away from it because mapping it to JPA its a bit of a pain :) – ams Aug 15 '12 at 9:15 ...
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Change R default library path using .libPaths in Rprofile.site fails to work

...ite settings or perhaps is overriding them by reading an .Rprofile setting from one of the RStudio defaults. It should also be mentioned that the result from this operation also appends the contents of calls to .Library and .Library.site, which is further reason why an RStudio- (or any other IDE or ...
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Can someone explain __all__ in Python?

...eleased today (or in 2012, even), the recommended practice would be to use from tk import *. I think the practice is accepted due to inertia, not intentional design. – chepner Nov 6 '19 at 15:36 ...
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nginx: [emerg] could not build the server_names_hash, you should increase server_names_hash_bucket_s

...op of your http block (probably located in /etc/nginx/nginx.conf). I quote from the nginx documentation what to do when this error appears: In this case, the directive value should be increased to the next power of two. So in your case it should become 64. If you still get the same error, try increa...
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Why can't enum's constructor access static fields?

... Quote from JLS, section "Enum Body Declarations": Without this rule, apparently reasonable code would fail at run time due to the initialization circularity inherent in enum types. (A circularity exists in any class with a ...