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Large-scale design in Haskell? [closed]
...Int, Address)
Good data structures (like zippers) can make some classes of testing needless, as they rule out e.g. out of bounds errors statically.
The profiler
Provide objective evidence of your program's heap and time profiles.
Heap profiling, in particular, is the best way to ensure no unnece...
Rails layouts per action?
...trollers in many levels. I have used method before, but wasn't thinking of testing that when I had the problem now, thanks again.
– 244an
Oct 1 '15 at 15:07
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When does static class initialization happen?
...extual order as defined in the class.
Consider the example:
public class Test {
static String sayHello() {
return a;
}
static String b = sayHello(); // a static method is called to assign value to b.
// but its a has not been initialized yet.
...
Biggest advantage to using ASP.Net MVC vs web forms
...ver the rendered HTML.
Provides clean separation of concerns(SoC).
Enables Test Driven Development (TDD).
Easy integration with JavaScript frameworks.
Following the design of stateless nature of the web.
RESTful urls that enables SEO.
No ViewState and PostBack events
The main advantage of ASP.net ...
Avoid trailing zeroes in printf()
...ld widths, then format the number using a format string based on that. The test harness main() shows this in action:
40.00000000000000000000 -> 40.000
359.01335000000000263753 -> 359.013
-359.00999000000001615263 -> -359.010
359.00999999999999090505 -> 359.010
3.01357000000000008...
What is the difference between a map and a dictionary?
...lements that can support the insertion and deletion of elements as well as test for membership
For example, we have a set of elements { A, B, C, D... } that we've been able to insert and could start deleting, and we're able to query "is C present?".
The Computing Science notion of map though is b...
How do you check whether a number is divisible by another number (Python)?
I need to test whether each number from 1 to 1000 is a multiple of 3 or a multiple of 5. The way I thought I'd do this would be to divide the number by 3, and if the result is an integer then it would be a multiple of 3. Same with 5.
...
Table name as variable
... set the table name based on the current year and month name, in this case TEST_2012OCTOBER. I then check if it exists in the DB already, and remove if it does. Then the next block will use a SELECT INTO Statement to create the table and populate it with records from another table with parameters.
...
How do I update if exists, insert if not (AKA “upsert” or “merge”) in MySQL?
...
Note this is not standard SQL. An example from the manual:
CREATE TABLE test (
id INT UNSIGNED NOT NULL AUTO_INCREMENT,
data VARCHAR(64) DEFAULT NULL,
ts TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (id)
);
mysql> REPLACE INTO test VALUES (1, '...
Get second child using jQuery
...jsperf.com/second-child-selector
The $(t).first().next() method is the fastest here, by far.
But, on the other hand, if you take the <tr> node and find the <td> children and and run the same test, the results won't be the same.
Hope it helps. :)
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