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Check if a class has a member function of a given signature
...of check and it's discarded from overload set. It falls back to the second one that returns false_type. This is not a compiler error because SFINAE principle.
– jrok
Feb 20 '14 at 7:57
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How to get current date & time in MySQL?
...ncy and indexing / search / comparison performance.
UNIX_TIMESTAMP()
One can always convert to human readable formats afterwards, internationalizing as is individually most convenient.
FROM_ UNIXTIME (unix_timestamp, [format ])
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Sorting arrays in NumPy by column
...e:
In [6]: a.view('i8,i8,i8').sort(order=['f1'], axis=0) #<-- returns None
In [7]: a
Out[7]:
array([[0, 0, 1],
[1, 2, 3],
[4, 5, 6]])
@Steve's really is the most elegant way to do it, as far as I know...
The only advantage to this method is that the "order" argument is a list...
How to get record created today by rails activerecord?
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Post.where(created_at: Time.zone.now.beginning_of_day..Time.zone.now.end_of_day)
PS: This answer has been modified as answer by Harish Shetty was better than mine. As my answer is accepted one. I have updated this answer for community support
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How do the major C# DI/IoC frameworks compare? [closed]
...the strengths and weaknesses of these popular DI/IoC frameworks, and could one easily be considered the best? ..:
7 Answers...
How to define “type disjunction” (union types)?
One way that has been suggested to deal with double definitions of overloaded methods is to replace overloading with pattern matching:
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Why JavaScript rather than a standard browser virtual machine?
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I think we will have JavaScript for a long time, but that will change sooner or later. There are so many developers willing to use other languages in the browser.
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How to create an object for a Django model with a many to many field?
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foo.bars.add(bar1, bar2)
As we can see, passing multiple objects saves one SELECT:
SELECT "app_bar"."id", "app_bar"."name" FROM "app_bar" WHERE "app_bar"."id" = 1
SELECT "app_bar"."id", "app_bar"."name" FROM "app_bar" WHERE "app_bar"."id" = 2
INSERT INTO "app_foo" ("name") VALUES ()
SELECT "app...
Why am I seeing “TypeError: string indices must be integers”?
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item is most likely a string in your code; the string indices are the ones in the square brackets, e.g., gravatar_id. So I'd first check your data variable to see what you received there; I guess that data is a list of strings (or at least a list containing at least one string) while it should ...
PowerShell: Store Entire Text File Contents in Variable
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One more approach to reading a file that I happen to like is referred to variously as variable notation or variable syntax and involves simply enclosing a filespec within curly braces preceded by a dollar sign, to wit:
$cont...