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When to use “new” and when not to, in C++? [duplicate]
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+1 nice one. just remember the first one can be written as Point p(0, 0); too. the = .. syntax may make him think that p is somehow a pointer that's assigned something.
– Johannes Schaub - litb
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Add number of days to a date
...JJRohrer no, it won't. strtotime will take any DST for the configured timezone into account. DST is only an issue when you do something like this OP: stackoverflow.com/questions/4066035
– Gordon
Jul 23 '14 at 16:51
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INSERT with SELECT
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Of course you can.
One thing should be noted however: The INSERT INTO SELECT statement copies data from one table and inserts it into another table AND requires that data types in source and target tables match. If data types from given table c...
Union of dict objects in Python [duplicate]
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This question provides an idiom. You use one of the dicts as keyword arguments to the dict() constructor:
dict(y, **x)
Duplicates are resolved in favor of the value in x; for example
dict({'a' : 'y[a]'}, **{'a', 'x[a]'}) == {'a' : 'x[a]'}
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String contains - ignore case [duplicate]
...ualsIgnoreCase(String).
A null CharSequence will return false.
This one will be better than regex as regex is always expensive in terms of performance.
For official doc, refer to : StringUtils.containsIgnoreCase
Update :
If you are among the ones who
don't want to use Apache commons lib...
How to delete shared preferences data from App in Android
... edited Apr 29 '18 at 0:55
OneCricketeer
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answered Dec 7 '11 at 5:39
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Firefox ignores option selected=“selected”
...g my head with Firefox 78.0.2. Didn't need a name on my form but giving it one provided relief.
– betakilo
Jul 18 at 19:55
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Find maximum value of a column and return the corresponding row values using Pandas
...he label may not uniquely identify the row, so df.loc may return more than one row.
Therefore, if df does not have a unique index, you must make the index unique before proceeding as above. Depending on the DataFrame, sometimes you can use stack or set_index to make the index unique. Or, you can si...
How to detect the device orientation using CSS media queries?
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@JohannCombrink Really important you mentioned this. Opening the keyboard will mess up the design. Good you point this out.
– lowtechsun
Apr 26 '17 at 11:26
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Enums and Constants. Which to use when?
...tole from here as I'm lazy)
[FlagsAttribute]
enum DistributedChannel
{
None = 0,
Transacted = 1,
Queued = 2,
Encrypted = 4,
Persisted = 16,
FaultTolerant = Transacted | Queued | Persisted
}
Constants should be for a single value, like PI. There isn't a range of PI values, there is jus...