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What Makes a Method Thread-safe? What are the rules?
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140
If a method (instance or static) only references variables scoped within that method then it is ...
What does = +_ mean in JavaScript
...values true, false, and null.
Integers in both decimal and hexadecimal ("0x"-prefixed) formats are
supported. Negative numbers are supported (though not for hex). If it
cannot parse a particular value, it will evaluate to NaN.
It is also noted that
unary plus is the fastest and preferred...
MySQL vs MongoDB 1000 reads
...ve been testing it lately. I had a table called posts in MySQL with about 20 million records indexed only on a field called 'id'.
...
Programmer Puzzle: Encoding a chess board state throughout a game
... possible (but incredibly unlikely) for one side to end up with 9 queens, 10 rooks, 10 bishops or 10 knights if all 8 pawns get promoted.
Stalemate
When in a position from which you cannot win your best tactic is to try for a stalemate. The most likely variant is where you cannot make a legal move...
Proper way to return JSON using node or Express
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How to declare a global variable in JavaScript?
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edited Sep 9 '14 at 19:00
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answered...
How can I build XML in C#?
...ocument, etc.) will quickly take a lot of memory. So if you are writing a 100 MB XML file from CSV, you might consider XmlWriter; this is more primitive (a write-once firehose), but very efficient (imagine a big loop here):
XmlWriter writer = XmlWriter.Create(Console.Out);
writer.WriteStartElement...
What is Full Text Search vs LIKE
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170
In general, there is a tradeoff between "precision" and "recall". High precision means that fewe...
How to convert int[] to Integer[] in Java?
...[] can be converted to Integer[] easily:
int[] data = {1,2,3,4,5,6,7,8,9,10};
// To boxed array
Integer[] what = Arrays.stream( data ).boxed().toArray( Integer[]::new );
Integer[] ever = IntStream.of( data ).boxed().toArray( Integer[]::new );
// To boxed list
List<Integer> you = Arrays.str...
Access denied for user 'root'@'localhost' while attempting to grant privileges. How do I grant privi
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| version() |
+------------+
| 5.5.21-log |
+------------+
1 row in set (0.00 sec)
mysql> SHOW GRANTS FOR 'root'@'localhost';
+---------------------------------------------------------------------+
| Grants for root@localhost |
+-----------------------...