[pretty_dumn_guy]

Dear Alanfriedman,

Thank you. I will look into this.

However, in this case, I can analyze the source now because it is available to me. What should I do when the source isn't available ? How do I proceed when all I have is the 'minified output'?

[alanfriedman]

You can try to prettify/beautify (something like http://jsbeautifier.org/), but the output can still be hard to read. If you're looking to learn how to build a particular feature that's closed-source, I'd recommend trying to build something similar yourself using tutorials or an open-source analog.