"There are three main difficulties that an inexperienced developer faces when trying to understand JavaScript as used in Drupal:

1. The lack of documentation,
2. The OOP style of programming,
3. The confusion between all the different elements and API involved

"
Complete article at Drupal API

Blessings!

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Let me talk about the history(hehe)
I was webmaster of somesite.com from october 2006 to march 2007.
In January 2007, my new boss wanted to port current home made CMS to a solid platform.
My boss choice was Java, using JBoss(I still smile when remember). I've made research by 3 weeks...
Drupal was the winner, core+community comply at least 80% of full somesite.com functionalities,
the other missing had to be just 2 months of customization and integration of special funcionalities, then the theme and final testing.

Lima-Peru, en algun lugar del distrito de Jesus Maria.
Lima-Peru, somewhere in Jesus Maria district
En este momento estoy en una 'cabina de internet', aqui la gente paga por el tiempo que usa internet. Por el precio de S./ 1.50 la hora, te alquilan una computadora conectada a internet, Normalmente se trata de equipos con uno o 2 años de antigüedad, pero estamos en el tercer mundo, lo que importa a la gente es "estar conectado".