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Check if a string contains an element from a list (of strings)
...ubstrings, with an OR "|" operator between them. Of course, you'll have to watch out for unescaped characters when building the expression, or a failure to compile it because of complexity or size limitations.
Another way to do this would be to construct a trie data structure to represent all the c...
Retrieve CPU usage and memory usage of a single process on Linux?
...ID. Hopefully, I can get it every second and write it to a CSV using the 'watch' command. What command can I use to get this info from the Linux command-line?
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Using LIMIT within GROUP BY to get N results per group?
...rst 5 years). The strings are truncated rather than throwing an error, so watch for warnings such as 1054 rows in set, 789 warnings (0.31 sec).
– Timothy Johns
Mar 15 '18 at 23:35
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MySQL ERROR 1045 (28000): Access denied for user 'bill'@'localhost' (using password: YES)
...calhost |
+---------+-----------+
8 rows in set (0.00 sec)
mysql>
OK watch me login as anonymous user:
C:\MySQL_5.5.12>mysql -urol -Dtest -h127.0.0.1 --protocol=TCP
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 12
Server version: 5.5.12-log MySQL Com...
Javascript Drag and drop for touch devices [closed]
...;
}
You may want to adjust 'clickms' to your tastes. Basically it's just watching for a 'touchstart' followed quickly by a 'touchend' to simulate a click.
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How to put a new line into a wpf TextBlock control?
...gt; once upon a time... &#10; this line below < / SomeObject>
watch out : if you both use &10 AND you go to the next line in your text, you'll have TWO empty lines.
here for details :
http://msdn.microsoft.com/en-us/library/ms788746.aspx
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What is the difference between substr and substring?
... // "ri" (start, end) indices / second value is NOT inclusive
//*** watch out for substring swap:
"string".substring(3,2); // "r" (swaps the larger and the smaller number)
"string".substr(3,2); // "in"
"string".slice(3,2); // "" (just returns "")
//*** negative...
Swapping two variable value without using third variable
...e-operation B
A = A inverse-operation B
however you have to potentially watch out for overflows and also not all operations have an inverse that is well defined for all values that the operation is defined. e.g. * and / work until A or B is 0
xor is particularly pleasing as it is defined for all...
How to convert an NSString into an NSNumber
...re, however I have just run a test and you will lose unsigned precision so WATCH OUT!!!
– Stoff81
Apr 28 '15 at 11:47
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Scala Doubles, and Precision
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Watch out, multiplying by the reciprocal doesn't work reliably, because it may not be reliably representable as a double: scala> def r5(x:Double) = math.round(x*100000)*0.000001; r5(0.23515) ==> res12: Double = 0.023514...