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Python “SyntaxError: Non-ASCII character '\xe2' in file”
...ing in the "UTF-8 Bytes" column which starts with %E2 is a candidate. Generally the issue is editing code with "smart" features turned on like "smart quotes" replacing " with “ (U+201C) and ” (U+201D) or turning -- into — (U+2014 em dash). All of those start with "\xe2\x80" in UTF-8.
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Determining memory usage of objects? [duplicate]
... That nice little nugged misled me, since I had something big called 'x' (hint: it looked small); here's an replacement: sort( sapply(mget(ls()),object.size) ) .
– petrelharp
Aug 28 '14 at 19:58
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Git: add vs push vs commit
...the suggested way to commit is the combined git commit -a, but you can mentally add a git add to the change block to understand the flow.
Lastly, the reason why push is a separate command is because of git's philosophy. git is a distributed versioning system, and your local working directory is your...
How to determine if one array contains all elements of another array
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Perhaps this is easier to read:
a2.all? { |e| a1.include?(e) }
You can also use array intersection:
(a1 & a2).size == a1.size
Note that size is used here just for speed, you can also do (slower):
(a1 & a2) == a1
But I guess the first is more re...
AI2 Keep Awake
...ly reduced by using this extension. Do not set WakeLocks if you do not really need them, use them as rarely as possible and release them as soon as possible. If actions are to be performed only occasionally, it is not necessary for the CPU to be constantly active. Instead, an alarm can be use...
How to see which commits in one branch aren't in the other?
...rence. For example, if you have two branches, A and B, a usual way to list all commits on only one side of them is with --left-right, like the example above in the description of that option. It however shows the commits that were cherry-picked from the other branch (for example, "3rd on b" may be c...
Who sets response content-type in Spring MVC (@ResponseBody)
...operty>
</bean>
However, using this method you have to redefine all HttpMessageConverters, and also it doesn't work with <mvc:annotation-driven />.
So, perhaps the most convenient but ugly method is to intercept instantiation of the AnnotationMethodHandlerAdapter with BeanPostProce...
Showing a Spring transaction in log
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INFO level won't show any tx activity at all, it would be too verbose. DEBUG will be necessary there.
– skaffman
Dec 27 '09 at 11:03
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MySQL Removing Some Foreign keys
...You can use this to find foreign key constraints: SELECT * FROM information_schema.table_constraints WHERE constraint_schema = '<your db name>' AND constraint_type = 'FOREIGN KEY'
– Gayan Dasanayake
Aug 26 '17 at 2:48
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Check play state of AVPlayer
Is there a way to know whether an AVPlayer playback has stalled or reached the end?
11 Answers
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