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MySQL combine two columns into one column
...to find a way to combine two columns into one, but keep getting the value '0' in the column instead to the combination of the words.
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Assign null to a SqlParameter
...ndexParameter.Value = (object)AgeItem.AgeIndex ?? DBNull.Value;
parameters[0] = planIndexParameter;
Here is a quote from the MSDN documentation for the ?: operator that explains the problem
Either the type of first_expression and second_expression must be the same, or an implicit conversion m...
How to get the Power of some Integer in Swift language?
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20 Answers
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Have the same README both in Markdown and reStructuredText
...st README.md
– Jonathan Eunice
Mar 20 '13 at 21:49
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JavaScript hashmap equivalent
... all costs, especially, if I know what makes my objects unique.
Update in 2014: Answered back in 2008 this simple solution still requires more explanations. Let me clarify the idea in a Q&A form.
Your solution doesn't have a real hash. Where is it???
JavaScript is a high-level language. Its basi...
What's the difference between the 'ref' and 'out' keywords?
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answered Dec 23 '08 at 9:18
Rune GrimstadRune Grimstad
33.2k99 gold badges5656 silver badges7474 bronze badges
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get the latest fragment in backstack
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Ahmad
54.5k1717 gold badges102102 silver badges130130 bronze badges
answered Mar 20 '12 at 13:38
Deepak GoelDeepak Goel
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How do I find the width & height of a terminal window?
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580
tput cols tells you the number of columns.
tput lines tells you the number of rows.
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Iterating through a list in reverse order in java
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edited Jan 20 '10 at 15:54
answered Jan 20 '10 at 15:34
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how to concatenate two dictionaries to create a new one in Python? [duplicate]
...the resulting list:
$ python -mtimeit -s'd1={1:2,3:4}; d2={5:6,7:9}; d3={10:8,13:22}' \
'd4 = dict(d1.items() + d2.items() + d3.items())'
100000 loops, best of 3: 4.93 usec per loop
Fastest: exploit the dict constructor to the hilt, then one update:
$ python -mtimeit -s'd1={1:2,3:4}; d2={5:6,7:9...