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Do declared properties require a corresponding instance variable?
Do properties in Objective-C 2.0 require a corresponding instance variable to be declared? For example, I'm used to doing something like this:
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How do I use 'git reset --hard HEAD' to revert to a previous commit? [duplicate]
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Reimport a module in python while interactive
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edited May 21 at 18:20
wjandrea
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Does Internet Explorer support pushState and replaceState?
...platform preview 3)
The first Release Candidate of IE9 (released 10th Feb 2011) does not support history.pushState or history.replaceState. Generally no new features are added after a product gets to RC stage so it is very unlikely that the final IE9 will support these methods.
Microsoft have a go...
Intellij IDEA generate for-each/for keyboard shortcut
... Also checkout postfix completion, e.g. stackoverflow.com/a/40020608/109795
– Tom
Apr 30 '19 at 14:27
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Git: Ignore tracked files
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290
Sure.
git update-index --assume-unchanged [<file> ...]
To undo and start tracking aga...
Concurrent vs serial queues in GCD
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A simple example: you have a block that takes a minute to execute. You add it to a queue from ...
Reading output of a command into an array in Bash
...hanks!), the following might perform better than the loop method in number 2:
IFS=$'\n' read -r -d '' -a my_array < <( my_command && printf '\0' )
Please make sure you use exactly this form, i.e., make sure you have the following:
IFS=$'\n' on the same line as the read statement: ...
Variable length (Dynamic) Arrays in Java
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Yes: use ArrayList.
In Java, "normal" arrays are fixed-size. You have to give them a size and...
How to print the contents of RDD?
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If you want to view the content of a RDD, one way is to use collect():
myRDD.collect().foreac...