why static factory methods over traditional constructors

https://jlordiales.me/2012/12/26/static-factory-methods-vs-traditional-constructors/

Generating and customizing Embedded twitter timeline

Generate Timeline widget

https://publish.twitter.com/#

Customize timeline widget

https://dev.twitter.com/web/embedded-timelines/parameters

difference between DTO, POJO, javabeans

http://stackoverflow.com/questions/1612334/difference-between-dto-vo-pojo-javabeans

see hidden files on mac book

 CMD + SHIFT + . 

more a user has invested in a product, less likely zhe is to leave

https://www.coursehero.com/file/p2roel/The-more-a-user-has-invested-in-a-product-the-less-likely-he-or-she-is-to-leave/

create a sudo user

https://www.digitalocean.com/community/tutorials/how-to-create-a-sudo-user-on-ubuntu-quickstart

usermod -aG sudo username

Regex DoS

https://www.owasp.org/index.php/Regular_expression_Denial_of_Service_-_ReDoS