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Access mysql remote database from command line
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For Mac, use the following command:
mysql -u app -h hostaddress -P port -D dbname -p
and then enter the password when prompted.
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Check if all elements in a list are identical
...for very large arrays, a native solution which optimizes away calls to obj.__eq__ when lhs is rhs, and out-of-order optimizations to allow short circuiting sorted lists more quickly.
– Glenn Maynard
Oct 2 '10 at 8:31
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Fast Linux File Count for a large number of files
...lly, the system shouldn't allow any path name that is longer than than PATH_MAX. If there are concerns, I can fix that, but it's just more code that needs to be explained to someone learning to write C. This program is intended to be an example of how to dive into subdirectories recursively.
#inclu...
Do declared properties require a corresponding instance variable?
...String *name;
it will generate synthesizing code as
@synthesize name = _name;
and you can access instance variable using _name
it is similar to declare
NSString* _name
but if you declare read-only property it like
@property (nonatomic, strong, readonly) NSString *name;
it will generate ...
Remove all special characters with RegExp
...d of ^\w. \W : Matches any non-word character. Equivalent to [^A-Za-z0-9_]. developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/…
– delkant
Jun 24 '16 at 22:14
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Python: changing value in a tuple
...nvert back, or construct a new tuple by concatenation.
In [1]: def replace_at_index1(tup, ix, val):
...: lst = list(tup)
...: lst[ix] = val
...: return tuple(lst)
...:
In [2]: def replace_at_index2(tup, ix, val):
...: return tup[:ix] + (val,) + tup[ix+1:]
...:
S...
One-liner to check whether an iterator yields at least one element?
...In case the iterator yields something false-ish you can write any(True for _ in iterator).
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How much is the overhead of smart pointers compared to normal pointers in C++?
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std::unique_ptr has memory overhead only if you provide it with some non-trivial deleter.
std::shared_ptr always has memory overhead for reference counter, though it is very small.
std::unique_ptr has time overhead only during constru...
Method names for getting data [closed]
...rtant to distinguish between data being pulled from the Redux store vs the app's database vs a third party API. Getting this right will definitely help with readability in the future. The original developer used add for both writes to a database and writes to the Store. Now I'm trying to separate th...
How to keep environment variables when using sudo
...udo the environment variables are not there. For example after setting HTTP_PROXY the command wget works fine without sudo . However if I type sudo wget it says it can't bypass the proxy setting.
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