I refer to http://api-first.com/ . The idea is, after wrote the stories needed to define interaction, and thus functions, of the system we are going to implement, the next step is to define an api, then proceed with API definition, then implement backend, frontend, and cycle this way redefining stories (or adding), refining api, change frontend and […]
3SUM algorithm tweak
http://en.wikipedia.org/wiki/3SUM this is the algorithm. I just thought that I can start from the middle, the rationale is that I have the work done not to be due. I wrote down the value of an example and try to iterate on the outer cycle starting from middle (max value + min value) then down to the […]
Parallelize PHP script … or at least sort of it with curl parallel
PHP is not a parallel capable programming language (someone would argue it is hard to state that PHP is a [anything]-capable programming language at all), but there are area where this could be parallelized some way. And these are the active waiting routine. The ideal scenario for a trival pseudo parallelization is a bundle of […]
Solved my problem with knockout
Using a model with nested observable array I did not know how to refer to self in a event handler (click) on a element in a cycle on that observableArray … function subObject(data,index) { var self = this; self._index = index; // … } function MyWholeModel() { var self = this; self.subObjects = ko.observableArray([]); self.currentSubobj […]
Static method and testable code
Following this discussion http://www.linkedin.com/groupAnswers?viewQuestionAndAnswers=&discussionID=130090944&gid=42193 enlight me on use of static methods and relation with TDD, what I learned so far is that is better to define a collection class implementing a collection interface, which has method that operate on collection of object, if this is the intend of the use of static methods. Example: Interface […]
ZCE: PHP 5.3 Zend Certificated Engineer. The exam: a more extensive report.
First of all, I have to pay some money to take it, so I tried to get information about this exam. I already have a book (ZEND PHP 5 Certification STUDY GUIDE, php|architect series), but certificate I was looking for is for 5.3, so I googled it. This is the more dated document (as far […]
Zend Certification: ZCE PHP 5.3
I just passed Zend Certification exam for PHP 5.3 . It means I have paid Zend, first of all. They gave me a printed paper (phisical paper) with instruction on what I can do. It says I can use Zend Certified Engineer icon found in http://www.zend.com/en/services/certification/zce-logo on my CV and site. This is the one that […]
Some Terms: Registry Pattern, object hash
I would talk about a pattern whose name I fail to know before, giving it the name of multi-singleton. Registry pattern I read about it in PHP 5 certification study guide from php|architect’s series. This is the example given: class Registry { private static $_register; public static function add(&$item, $name = null) { if (is_object($item) […]
base 64 encode by ebay (ending with **)
I found this and thought it was my bug .. but .. When I get IEASToken in getUser ebay api request it returns a token with == a the end. It is a base64 encoded string, and have ‘=’ sign at end as expected. But when eBay send notification, there are ‘**’ in place of […]
Moving development to the extreme
For sparing time, you end up wasting all time. A colleague, when first time talked my about XP (more than 10 years ago), said something like “It’s wonderfull. You are much quicker. You know it? Beautifull: you write tests, and then …”, and me “tests?!?”, “yes, then the system continue to work along time .. […]