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List comprehension vs. lambda + filter
...ue in Python. Even though Guido considered removing map, filter and reduce from Python 3, there was enough of a backlash that in the end only reduce was moved from built-ins to functools.reduce.
Personally I find list comprehensions easier to read. It is more explicit what is happening from the exp...
Add alternating row color to SQL Server Reporting services report
...*******
' -- Display green-bar type color banding in detail rows
' -- Call from BackGroundColor property of all detail row textboxes
' -- Set Toggle True for first item, False for others.
'*************************************************************************
Function AlternateColor(ByVal OddColo...
Difference between Lookup() and Dictionary(Of list())
...
@nawfal - that's exactly what Lookups are for. From msdn: "You can create an instance of a Lookup<TKey, TElement> by calling ToLookup on an object that implements IEnumerable<T>."
– Niall Connaughton
Aug 26 '15 at 6:06
...
Convert JavaScript string in dot notation into an object reference
...erencing them). Like asking "how can I look up a function or variable name from a string".
This is bad programming practice (unnecessary metaprogramming specifically, and kind of violates function side-effect-free coding style, and will have performance hits). Novices who find themselves in ...
How to get a variable value if variable name is stored as string?
...evel of variable indirection. Bash uses the value of the
variable formed from the rest of parameter as the name of the
variable; this variable is then expanded and that value is used in the
rest of the substitution, rather than the value of parameter itself.
...
Priority queue in .Net [closed]
...
You might like IntervalHeap from the C5 Generic Collection Library. To quote the user guide
Class IntervalHeap<T> implements interface IPriorityQueue<T> using an interval heap stored as an array of pairs. The FindMin and
FindMax operations,...
Asynchronous Requests with Python requests
...request
Call async.map on a list of all the requests / actions
Example:
from requests import async
# If using requests > v0.13.0, use
# from grequests import async
urls = [
'http://python-requests.org',
'http://httpbin.org',
'http://python-guide.org',
'http://kennethreitz.com'...
Standard Android menu icons, for example refresh [closed]
... standard icons, such as ic_menu_refresh (the refresh icon), are missing from android.R .
5 Answers
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How to export JavaScript array info to csv (on client side)?
...
From what I know, there isn't a way to do that using window.open. However, you can create a hidden link that has a download attribute set to the file name you desire. Then "clicking" this link will download the file in the na...
PHP calculate age
...t month, day and year
$birthDate = explode("/", $birthDate);
//get age from date or birthdate
$age = (date("md", date("U", mktime(0, 0, 0, $birthDate[0], $birthDate[1], $birthDate[2]))) > date("md")
? ((date("Y") - $birthDate[2]) - 1)
: (date("Y") - $birthDate[2]));
echo "Age is:"...