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When to use StringBuilder in Java [duplicate]
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Actually, nowadays I really would almost never use anything else than Strings. I used to advocate for these, but with advances of the JVM it's almost NEVER necessary anymore, fortunately. If you have a look at the bytecode for the abov...
Can jQuery read/write cookies to a browser?
...is not the same plugin as linked by Giver Of Cookies. The one he linked is now at code.google.com/p/cookies
– JAAulde
Jul 24 '12 at 18:58
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Trigger 404 in Spring-MVC controller?
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In your case it sounds fine, but I don't know that I'd recommend the exceptions found in the link you provided to handle all cases where an exception in necessary - sometimes you should make your own.
– Roy Truelove
Oct 10 '12 a...
Check if PHP session has already started
... really think about refactoring your session management code if you don't know whether or not a session is started...
That said, my opinion is subjective, and there are situations (examples of which are described in the comments below) where it may not be possible to know if the session is started....
iOS app, programmatically get build version
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For Swift, NSBundle.mainBundle() is now Bundle.main
– Todd
Nov 25 '16 at 18:20
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Check to see if a string is serialized?
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+1 for giving credits. I didn't know WordPress had this built-in. Thanks for the idea -- I'll now go ahead and create an archive of useful functions from the WordPress Core.
– Amal Murali
Feb 22 '14 at 3:50
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correct way to define class variables in Python [duplicate]
..._elem
999 456
>>> print c2.static_elem, c2.object_elem
999 456
# Now, let's try changing the object element
c1.object_elem = 888
>>> print c1.static_elem, c1.object_elem
999 888
>>> print c2.static_elem, c2.object_elem
999 456
As you can see, when we changed the class ...
How to get a value from a cell of a dataframe?
...as 10.1/13.1
I upgraded from 10.1 to 13.1, before iloc is not available.
Now with 13.1, iloc[0]['label'] gets a single value array rather than a scalar.
Like this:
lastprice=stock.iloc[-1]['Close']
Output:
date
2014-02-26 118.2
name:Close, dtype: float64
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MySQL Conditional Insert
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In this, dual is a table with one row only (found originally in Oracle, now in mysql too). The logic is that the SELECT statement generates a single row of data with the required values, but only when the values are not already found.
Alternatively, look at the MERGE statement.
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Getting the difference between two repositories
...ng for me, it's throwing: fatal: ambiguous argument 'remotes/b/master': unknown revision or path not in the working tree. Use '--' to separate paths from revisions, like this: 'git <command> [<revision>...] -- [<file>...]' Any ideas here?
– Andrew Heekin
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