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How do I use itertools.groupby()?
...dged" in this way. Since all of the itertools are iterators, they must be cast to a builtin (list(), tuple()) or consumed in a loop/comprehension to display the contents. These are redundancies the author likely excluded to conserve space.
– pylang
Oct 25 '18...
What is the result of % in Python?
...erator, so watch out if you are coming from a language with automatic type casting (like PHP or JS) where an expression like '12' % 2 + 3 is legal: in Python it will result in TypeError: not all arguments converted during string formatting which probably will be pretty confusing for you.
[update for...
SELECT DISTINCT on one column
...ou're on SQL Server 2005 or greater, you can use a CTE with ROW_NUMBER():
SELECT *
FROM (SELECT ID, SKU, Product,
ROW_NUMBER() OVER (PARTITION BY PRODUCT ORDER BY ID) AS RowNumber
FROM MyTable
WHERE SKU LIKE 'FOO%') AS a
WHERE a.RowNumber = 1
...
Which Boost features overlap with C++11?
...down or removed using variadic templates. Some common use cases of Lexical cast can be replaced by std::to_string and std::stoX.
Some Boost libraries are related to C++11 but also have some more extensions, e.g. Boost.Functional/Hash contains hash_combine and related functions not found in C++11, B...
How to escape JSON string?
...or a control character will always return "\\u000X". I believe you need to cast the char first to an int. Consider replacing it with string t = "000" + ((int)c).ToString("X");
– Jan Discart
Dec 22 '18 at 19:18
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Adding two numbers concatenates them instead of calculating the sum
...
Just add a simple type casting method as the input is taken in text. Use the following:
var y = parseInt(document.getElementById("txt1").value);
var z = parseInt(document.getElementById("txt2").value);
var x = y + z;
...
UITextView style is being reset after setting text property
...
Sitting with this for hours, I found the bug.
If the property "Selectable" = NO it will reset the font and fontcolor when setText is used.
So turn Selectable ON and the bug is gone.
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How to convert a Map to List in Java?
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Thanks! I was assuming the cast from Collection to List would work.
– asgs
Jun 18 '13 at 21:28
1
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When to use SELECT … FOR UPDATE?
Please help me understand the use-case behind SELECT ... FOR UPDATE .
2 Answers
2
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