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Array Prototype Methods

I understand that functions in JavaScript can take any number of arguments.
Yes.

I can describe the similarity between blocks in Ruby and anonymous functions in JavaScript.
Yes.

Where are the methods available to all arrays (e.g. forEach, map, etc.) defined?
Array.prototype

I can explain the difference between using a for loop and the forEach method.
Yes.

I can explain the difference between forEach and map.
Yes.

Can you explain the process of taking a plain JavaScript objects, transforming them into DOM nodes, and appending them to the page.
I can explain the process from a high level, but couldn't do it without referencing an example.

How comfortable are you using the forEach() method?
8/10

How comfortable are you using the map() method?
7/10

How comfortable are you using the filter() method?
6/10

How comfortable are you using the reduce() method?
5/10

How comfortable are you using the sort() method?
6/10

How comfortable are you working with simple unit tests in Mocha in the browser?
6/10

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