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Why does running the Flask dev server run itself twice?
...ijn Pieters♦Martijn Pieters
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When to use SELECT … FOR UPDATE?
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Gili
72.3k7575 gold badges325325 silver badges598598 bronze badges
answered May 7 '13 at 18:00
QuassnoiQuassnoi
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How to test if list element exists?
...4 10730 100 a
is.null(foo[["k"]]) 0 0 168.50 1 467 3266 100 a
exists("k", where = foo) 6532 6998 7940.78 7232 7465 56917 100 b
If you are planing to use the list as a fast dictionary accessed many times, then the is.null approach might be the only viable option. ...
Get the previous month's first and last day dates in c#
...ime
– Matthew Lock
Feb 13 '13 at 23:32
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How to get the original value of an attribute in Rails
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VincentVincent
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Haskell Type vs Data Constructor
... totally different. So you might do something like this:
data Config = XML_Config {...} | JSON_Config {...}
(With some suitable fields in there, obviously.) You can't do stuff like this in normal programming languages, which is why most people aren't used to it.
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How can I get column names from a table in SQL Server?
... Qbik "N" if for handlling unicode string like varchar in ANSI(32bit) and nvarchar in unicode(64bit)
– thatsalok
Jun 25 '14 at 12:36
9
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Sharing a URL with a query string on Twitter
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https://twitter.com/intent/tweet?text={text_to_share} works perfectly on all platforms. Been searching high and low for this.. Thanks!
– Jack Dewhurst
Jul 4 '18 at 9:40
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What is __gxx_personality_v0 for?
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curiousguy
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answered Nov 30 '08 at 19:00
CesarBCesarB
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What is attr_accessor in Ruby?
I am having a hard time understanding attr_accessor in Ruby .
Can someone explain this to me?
19 Answers
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