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Double not (!!) operator in PHP

... 294 It's not the "double not operator", it's the not operator applied twice. The right ! will result...
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Rails check if yield :area is defined in content_for

... wintermeyer 7,19866 gold badges3131 silver badges6464 bronze badges answered Mar 11 '10 at 22:05 gudleikgudleik 2,87111 gold bad...
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Re-entrant locks in C#

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Why is a “GRANT USAGE” created the first time I grant a user privileges?

... 147 As you said, in MySQL USAGE is synonymous with "no privileges". From the MySQL Reference Manual...
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How to catch SQLServer timeout exceptions

...sql = new SqlConnection(@"Network Library=DBMSSOCN;Data Source=YourServer,1433;Initial Catalog=YourDB;Integrated Security=SSPI;"); sql.Open(); SqlCommand cmd = sql.CreateCommand(); cmd.CommandText = "DECLARE @i int WHILE EXISTS (SELECT 1 from sysobjects) BEGIN SELECT @i = 1 END"; cm...
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Erasing elements from a vector

...instate Monica 3,51155 gold badges3232 silver badges4747 bronze badges answered Dec 7 '08 at 11:07 MottiMotti 95.3k4242 gold badge...
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Bash if statement with multiple conditions throws an error

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List all of the possible goals in Maven 2?

... Ry-♦ 192k4444 gold badges392392 silver badges404404 bronze badges answered Oct 22 '10 at 12:43 Romain Linsolas...
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What's the difference between parenthesis $() and curly bracket ${} syntax in Makefile?

... answered Aug 7 '14 at 14:57 Norman GrayNorman Gray 10.4k11 gold badge2626 silver badges5050 bronze badges ...
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Map function in MATLAB?

...for numeric arrays: >> y = arrayfun(@(x) x^2, 1:10) y = 1 4 9 16 25 36 49 64 81 100 There are two other built-in functions that behave similarly: cellfun (which operates on elements of cell arrays) and structfun (which operates on each field of a structure)...