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Converting BigDecimal to Integer
...enefit of giving you more control over the rounding process.
Spock Groovy Test
void 'test BigDecimal rounding'() {
given:
BigDecimal decimal = new BigDecimal(Integer.MAX_VALUE - 1.99)
BigDecimal hugeDecimal = new BigDecimal(Integer.MAX_VALUE + 1.99)
BigDecimal reallyHuge = new BigD...
What is the difference between map and flatMap and a good use case for each?
...
Use test.md as a example:
➜ spark-1.6.1 cat test.md
This is the first line;
This is the second line;
This is the last line.
scala> val textFile = sc.textFile("test.md")
scala> textFile.map(line => line.split(" ")).c...
Get program execution time in the shell
...assful of students' programs:
fmt="run { date = '$(date)', user = '$who', test = '$test', host = '$(hostname)', times = { user = %U, system = %S, elapsed = %e } }"
/usr/bin/time -f "$fmt" -o $timefile command args...
I later concatenated all the $timefile files and pipe the output into a Lua inte...
Generate a random alphanumeric string in Cocoa
...
Here's a quick and dirty implementation. Hasn't been tested.
NSString *letters = @"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
-(NSString *) randomStringWithLength: (int) len {
NSMutableString *randomString = [NSMutableString stringWithCapacity: len]...
For loop example in MySQL
...ned not null default 0
)
engine=innodb;
drop procedure if exists load_foo_test_data;
delimiter #
create procedure load_foo_test_data()
begin
declare v_max int unsigned default 1000;
declare v_counter int unsigned default 0;
truncate table foo;
start transaction;
while v_counter < v_max ...
How long do browsers cache HTTP 301s?
I am debugging a problem with a HTTP 301 Permanent Redirect. After a quick test, it seems that Safari clears its cache of 301s when it is restarted, but Firefox does not.
...
Has anyone used Coffeescript for a production application? [closed]
...including support for offline mode.
All of our coffeescript code is fully tested. The tests themselves are written in coffeescript, and use the Qunit framework (which is written in javascript). We also wrote an extension to the Qunit framework that makes the tests nicer. The Qunit extension is w...
Do you need to use path.join in node.js?
... it uses forward versus back slashes. For example:
path.join("/var/www", "test")
Will correctly insert the separator between www and test /var/www/test
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How do I generate random numbers in Dart?
... = 0; i < 10; i++) {
print(rng.nextInt(100));
}
}
This code was tested with the Dart VM and dart2js, as of the time of this writing.
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Can you have if-then-else logic in SQL? [duplicate]
...ELECT TOP 1 WITH TIES product,price FROM cte ORDER BY a;
An SQLfiddle to test with.
Alternately, you can combine it all into one SELECT to simplify it for the optimizer;
SELECT TOP 1 WITH TIES product,price FROM table1
WHERE project=1 OR customer=2 OR company=3
ORDER BY CASE WHEN project=1 THE...