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Class does not implement its superclass's required members
...cial set of inheritance rules, but protocol conformance is still inherited down the chain. If a parent class conforms to a protocol, its subclasses must to conform to that protocol.
Ordinarily, this isn't a problem, because most protocols only require methods which don't play by special inheritance...
How to check if an object is a list or tuple (but not string)?
...low.
Functions like this one, that depend on each recursive call breaking down the work to be done, have to special-case strings--because you can't break down a string below the level of a one-character string, and even a one-character string acts like a list.
Note: the try/except is the cleanest ...
How to stop unwanted UIButton animation on title change?
...get to add the [UIView setAnimationsEnabled:YES], or for it to get removed down the track.
– siburb
Jun 12 '14 at 6:51
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How to save MySQL query output to excel or .txt file? [duplicate]
... the server machine that the client does not have access any way. I voted down this answer.
– Kemin Zhou
Aug 25 '17 at 0:55
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Guid is all 0's (zeros)?
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down-voted because the line "Guid = Guid.NewGuid();" may confuse newer developers. Consider editing to something like "Guid someGuid = Guid.NewGuid();" like the g2 line ;)
– daviesdoesit
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Git checkout: updating paths is incompatible with switching branches
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For me what worked was:
git fetch
Which pulls all the refs down to your machine for all the branches on remote. Then I could do
git checkout <branchname>
and that worked perfectly. Similar to the top voted answer, but a little more simple.
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Is it safe to use -1 to set all bits to true?
...the same, just using another way formalizing it (modulo 2^n). It all comes down to mathematical relations.
– Johannes Schaub - litb
Apr 30 '09 at 22:18
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Spring AOP vs AspectJ
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Benchmarks at web.archive.org/web/20150520175004/https://docs.codehaus.org/…
– Ian
Oct 31 '16 at 1:17
add a comment
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Is there a way to run Python on Android?
...undocumented things that were weird for me: All widgets get every on_touch_down event even if the event occurred outside their region, No widget has a draw() method, almost everything happens via a custom observer pattern on custom Properties they made up (note these share the name with Python's pro...
Pass parameters in setInterval function
... Adding parameters to an object or function can cause the compiler to slow down since it will have to rebuild it's native code representation of the object (for instance if this was done in a hot loop) so be careful.
– mattdlockyer
Feb 20 '14 at 18:50
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