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SQLite table constraint - unique on multiple columns
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edited May 18 at 7:31
Martin Tournoij
22.1k1717 gold badges8585 silver badges116116 bronze badges
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Rails auto-assigning id that already exists
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edited Jun 17 '12 at 5:07
answered Jun 17 '12 at 4:43
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Do C# Timers elapse on a separate thread?
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61
For System.Timers.Timer:
See Brian Gideon's answer below
For System.Threading.Timer:
MSDN Doc...
Number of days in particular month of particular year?
... the number of days in that month
YearMonth yearMonthObject = YearMonth.of(1999, 2);
int daysInMonth = yearMonthObject.lengthOfMonth(); //28
Test: try a month in a leap year:
yearMonthObject = YearMonth.of(2000, 2);
daysInMonth = yearMonthObject.lengthOfMonth(); //29
Java 7 and earlier
Crea...
What's the difference between using CGFloat and float?
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195
As @weichsel stated, CGFloat is just a typedef for either float or double. You can see for you...
Size-limited queue that holds last N elements in Java
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174
+50
Apache ...
image.onload event and browser cache
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159
As you're generating the image dynamically, set the onload property before the src.
var img =...
Citing the author of a blockquote using Markdown syntax
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189
Markdown has no dedicated citation syntax.
Your best bet is something like this:
> Quote ...
What's the difference between __PRETTY_FUNCTION__, __FUNCTION__, __func__?
... used inside of a function. It was added to C in C99. From C99 §6.4.2.2/1:
The identifier __func__ is implicitly declared by the translator as if, immediately following the opening brace of each function definition, the declaration
static const char __func__[] = "function-name";
appeared, where...