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Java switch statement: Constant expression required, but it IS constant
...sts to primitive types or String only.
Note that this doesn't include any form of method or lambda calls, new, .class. .length or array subscripting. Furthermore, any use of array values, enum values, values of primitive wrapper types, boxing and unboxing are all excluded because of a).
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How to check if the string is empty?
...ring is None OR myString is empty or blank
return False
More concise forms of the above code:
def isBlank (myString):
return not (myString and myString.strip())
def isNotBlank (myString):
return bool(myString and myString.strip())
...
SQL Server IIF vs CASE
...ical sugar" as initially implemented.
CASE is portable across all SQL platforms whereas IIF is SQL SERVER 2012+ specific.
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How to print number with commas as thousands separators?
...
Locale unaware
'{:,}'.format(value) # For Python ≥2.7
f'{value:,}' # For Python ≥3.6
Locale aware
import locale
locale.setlocale(locale.LC_ALL, '') # Use '' for auto, or force e.g. to 'en_US.UTF-8'
'{:n}'.format(value) # For Python ≥...
CURL alternative in Python
...pt', 'application/json')
req.add_header("Content-type", "application/x-www-form-urlencoded")
req.add_header('Authorization', encodeUserData(u, p))
# make the request and print the results
res = urllib2.urlopen(req)
print res.read()
Furthermore if you wrap this in a script and run it from a termina...
What is trunk, branch and tag in Subversion? [duplicate]
...using svn-git. It just doesn't like it if the branches are inappropriately formed. So the summary is, when it comes to tools like svn-git (which you might have to use in the future), they will be tuned to work against a repo that follows these conventions, and might refuse to function correctly/usef...
How to convert an NSTimeInterval (seconds) into minutes
...e iOS 8 or OS X 10.10, this just got a lot easier. The new NSDateComponentsFormatter class allows you to convert a given NSTimeInterval from its value in seconds to a localized string to show the user. For example:
Objective-C
NSTimeInterval interval = 326.4;
NSDateComponentsFormatter *componentF...
How to copy a file to a remote server in Python using SCP or SSH?
...nation])
sts = os.waitpid(p.pid, 0)
Where destination is probably of the form user@remotehost:remotepath. Thanks to
@Charles Duffy for pointing out the weakness in my original answer, which used a single string argument to specify the scp operation shell=True - that wouldn't handle whitespace in p...
Rename an environment with virtualenvwrapper
...ning that cpvirtualenv may not work properly due to some hard-coded path information. Here's the docs: virtualenvwrapper.readthedocs.org/en/latest/…
– modulitos
Jun 1 '15 at 8:44
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Splitting string into multiple rows in Oracle
...rtunately adding and Name = prior Name to the connect by clause causes ORA-01436: CONNECT BY loop in user data.
– mik
Oct 24 '19 at 15:39
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