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What is event bubbling and capturing?
...utermost element and propagated to the inner elements.
Capturing is also called "trickling", which helps remember the propagation order:
trickle down, bubble up
Back in the old days, Netscape advocated event capturing, while Microsoft promoted event bubbling. Both are part of the W3C Document...
Rotating a two-dimensional array in Python
...2]]
This list is passed into zip() using argument unpacking, so the zip call ends up being the equivalent of this:
zip([3, 4],
[1, 2])
# ^ ^----column 2
# |-------column 1
# returns [(3, 1), (4, 2)], which is a original rotated clockwise
Hopefully the comments make it clear what zip ...
NSLog/printf specifier for NSInteger?
... z and t modifiers to handle NSInteger and NSUInteger without warnings, on all architectures.
You want to use %zd for signed, %tu for unsigned, and %tx for hex.
This information comes courtesy of Greg Parker.
Original answer:
The official recommended approach is to use %ld as your specifier, a...
Android – Listen For Incoming SMS Messages
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@Sermilion You have to manually allow permission to read SMS in application manager of the mobile.
– Sanjay Kushwah
Mar 9 '17 at 9:39
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Access to Modified Closure (2)
...Access to Modified Closure . I just want to verify if the following is actually safe enough for production use.
1 Answer
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What's the difference between an id and a class?
... to a specific element and class when you have a number of things that are all alike. For instance, common id elements are things like header, footer, sidebar. Common class elements are things like highlight or external-link.
It's a good idea to read up on the cascade and understand the precedence ...
Get query from java.sql.PreparedStatement [duplicate]
...re lucky, the JDBC driver in question may return the complete SQL by just calling PreparedStatement#toString(). I.e.
System.out.println(preparedStatement);
To my experience, the ones which do so are at least the PostgreSQL 8.x and MySQL 5.x JDBC drivers. For the case your JDBC driver doesn't supp...
Xcode - How to fix 'NSUnknownKeyException', reason: … this class is not key value coding-compliant f
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I've made sure all the class are already set, but the NSUnknownKeyException still comes out :(
– Zennichimaro
Apr 3 '13 at 3:40
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Delete last commit in bitbucket
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@RahulSaha since what you're doing is basically trying to merge a commit into the branch, I'm pretty sure it'll give you a merge conflict you're going have to solve.
– asermax
Jun 1 '18 at 12:52
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What's the best way to check if a file exists in C?
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There are pitfalls associated with access(). There is a TOCTOU (time of check, time of use) window of vulnerability between using access() and whatever else you do afterwards. [...to be continued...]
– Jonathan Leff...