> For the complete documentation index, see [llms.txt](https://certil-remy.gitbook.io/learn/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://certil-remy.gitbook.io/learn/scraping/untitled-4.md). # Video Review: Object Orientation and Scraping ## Overview In this two part video review, we'll cover the history of Object Orientation, a basic overview of writing tests, and creating objects from data that we've scraped. In this walkthrough, we'll work with data that we've scraped from Wikipedia. ## Objectives * Explain Esdger Dijkstra's influence on programming * Write tests that describe our objects * Define Hook, class getter and constructor method for our class * Define a class constructor method to scrape from a data source and return a hash of properties * Dynamically assign attributes for our instance using the `send` method * Use the tap method to fix 'sandwich code' and dynamically assign properties \ \ View [OO Ruby Video Review: Object Orientation and Scraping](https://learn.co/lessons/oo-ruby-video-review-object-orientation-and-scraping) on Learn.co and start learning to code for free.