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Learning WebGL and three.js [closed]
...his awesome open-gl tutorial. You don't have to set up the matrices, typed arrays, because three already sets it up for you, updating them when needed. The shader though, you can write from scratch - a simple color rendering would be two lines of GLSL. There is also a post processing plug-in for thr...
Truncating all tables in a Postgres database
... once we don't need any cursor or loop at all:
Passing table names in an array
Aggregate all table names and execute a single statement. Simpler, faster:
CREATE OR REPLACE FUNCTION f_truncate_tables(_username text)
RETURNS void AS
$func$
BEGIN
RAISE NOTICE '%',
-- EXECUTE -- dangerous...
C++ equivalent of StringBuffer/StringBuilder?
... (or sprintf if you want to risk writing buggy code ;-) ) into a character array and convert back to a string is about the only option.
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Storing Images in PostgreSQL
...atabase is the best way for a "unified image webservice".
use bytea (BYTE Array): for caching thumbnail images. Cache the little images to send it fast to the web-browser (to avoiding rendering problems) and reduce server processing. Cache also essential metadata, like width and height. Database ca...
Get properties and values from unknown object
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There is no really need to create a list from array, simply PropertyInfo[] props = input.GetType().GetProperties();
– VladL
Dec 17 '14 at 10:11
2
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How to download and save a file from Internet using Java?
...ream, meaning the entire traffic is still being copied through Java byte[] arrays instead of remaining in native buffers. Only fos.getChannel()is actually a native channel, so the overhead remains in full. That's zero gains from using NIO in this case. Apart from being broken, as EJP and Ben MacCann...
Practical uses of different data structures [closed]
...re composed of more than one primitive data types.class, structure, union, array/record.
abstract datatypes are composite datatypes that have way to access them efficiently which is called as an algorithm. Depending on the way the data is accessed data structures are divided into linear and non line...
Is it valid to define functions in JSON results?
...g (double-quoted Unicode
with backslash escaping)
Boolean
(true and false)
Array (an ordered
sequence of values, comma-separated
and enclosed in square brackets)
Object (collection of key:value
pairs, comma-separated and enclosed
in curly braces)
null
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Message Queue vs. Web Services? [closed]
...ll have alternate message channels by POSTing asynchronously to a separate array of log servers.
After you consider it for a while, you sit back and start to realize that REST may just eliminate the need for a messaging queue and an ESB altogether.
http://www.infoq.com/presentations/BPM-with-REST
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How to sort a list in Scala by two fields?
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Scala, under the hood of sortBy method uses java.util.Arrays.sort, which for array of objects guarantees to be stable. So, yes, this solution is correct. (This was checked in Scala 2.10)
– Marcin Pieciukiewicz
Jun 28 '13 at 12:44
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