kornpow/intro-learning-challenge.md

## intro-learning-challenge.md

      
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              intro-learning-challenge.md
            
          
    In-class Learning Challenge

Name

Sam Korn
##Email
samuel.korn@colorado.edu
Checkpoint 1


Checkpoint 2


Challenge 1


Challenge 2


Two Questions

Write down your answers to TWO questions. For the rest, think about them and be ready to discuss in class.
What does D3 stand for?

Data-Driven Documents
What is the big deal about D3?

D3 provides a non-proprietary way of manipulating DOM elements of the page, according to datasets. It allows for clean data visualization.
Who is Mike Bostock?

Mike Bostock works for the New York Times making data visualization infographics. He also created the D3 library.
In the expression function(d) { return Math.sqrt(d); }, can d be replaced by another variable name such as t? Why or why not?

Yes, once data has been bound to a node, it is always held as the first argument to that variable. The variable name does not change what value is in it.
Which sentence or paragraph in the tutorial article is impossible to understand and can be skipped for now?

The second to last paragraph in the tutorial talks about key functions, which is something that we do not know about yet.