foocoding · kvarak · Jun 28, 2019 · Jun 25, 2019 · Jun 26, 2019
diff --git a/README.md b/README.md
@@ -5,10 +5,10 @@ or links, please share them by [opening a pull request](https://github.com/FooCo
 
 Here you can find course content and homework for the JavaScript2 module
 
-|Week|Topic|Read|Homework|
-|----|-----|----|--------|
+|Week|Topic|Read|Homework|Lecture Notes|
+|----|-----|----|--------|--------|
 |1.|• Capturing user input through forms <br>• [Events](http://javascript.info/introduction-browser-events)<br>• [Basic DOM manipulations](../../../fundamentals/blob/master/fundamentals/DOM_manipulation.md)<br>• [Code debugging using the browser](http://javascript.info/debugging-chrome) <br>• [Code commenting](../../../fundamentals/blob/master/fundamentals/code_commenting.md)<br>• Structuring code files<br>• [Code formatting](../../../fundamentals/blob/master/fundamentals/code_formatting.md)<br>• [Handing in homework via PR](../../..//fundamentals/blob/master/fundamentals/homework_pr.md) |[Reading Week 1](/Week1/README.md)|[Homework Week 1](/Week1/MAKEME.md)|
-|2.|• Functions + JSON/Arrays<br>• [Array Manipulations](../../../fundamentals/blob/master/fundamentals/array_manipulation.md)<br>• JSON<br>• [Map and filter](../../../fundamentals/blob/master/fundamentals/map_filter.md)<br>• Arrow functions |[Reading Week 2](/Week2/README.md)|[Homework Week 2](/Week2/MAKEME.md)|
+|2.|• Functions + JSON/Arrays<br>• [Array Manipulations](../../../fundamentals/blob/master/fundamentals/array_manipulation.md)<br>• JSON<br>• [Map and filter](../../../fundamentals/blob/master/fundamentals/map_filter.md)<br>• Arrow functions |[Reading Week 2](/Week2/README.md)|[Homework Week 2](/Week2/MAKEME.md)|[Notes](/Week2/LECTURENOTES.md)
 |3.|• [Closures](../../../fundamentals/blob/master/fundamentals/scope_closures_this.md) <br>• Callbacks|[Reading Week 3](/Week3/README.md)|[Homework Week 3](/Week3/MAKEME.md)|
 
 ## Test

diff --git a/Week2/LECTURENOTES.md b/Week2/LECTURENOTES.md
@@ -0,0 +1,51 @@
+### Lecture Notes Week 2
+
+#### Before class
+Slack message students for things they'd like to review before diving into new topics
+
+## Reviewing (11-11:30am)
+Cover individual topics that students may still be stuck on from previous lectures and homework
+
+## JSON (11:30am-12pm)
+* Illustration on Google Maps. How do people from Sweden speak to people from Sri Lanka?
+* [Advice Slip](https://adviceslip.com/) and [API](https://api.adviceslip.com/#endpoint-random). If they have machines that run on the programming language RUST, how can we communicate with them? They serialize their data to JSON!
+* Douglass Crawford
+* What is JSON?
+  * Javscript Object Notation
+  * We are fortunate that it's familiar and easy to understand :)
+  * It is a STRING [PokeAPI](https://pokeapi.co/api/v2/pokemon/squirtle/)
+  * Not all javascript objects are valid json
+* Coding exercise (lecture-exercise.js)
+  * JSON.parse
+* Serialization vs Deserialization
+  * JSON.stringify()
+  * Other formats
+    * protobufs
+    * XML
+    * GRPC?!
+* Cover homework question #3
+
+## Functions advanced (12-12:30pm)
+* Different ways functions can be made:
+  * function declaration vs expression
+  * arrow function 
+    * Omitting return, parameter parenthesis
+* What's a method?
+* Pure function? or side effects?
+* Example: how does a program run this? (example w/ a function, call of that function, and a console log)
+  * Call stack (stack overflow)
+* Params
+  * Extra params
+  * Default params
+* Recursion (basic example)
+* Example function 
+  * pigs example?
+  * countChar("kakkerlak", "k")? With DOM manipulation?
+* Simplicity of functions
+  * while loop from [Chapter 5](http://eloquentjavascript.net/05_higher_order.html)
+* Higher order functions
+  * repeat(n, action)
+  * greaterThan10
+
+## Array Manipulations
+## Map, Filter, Reduce (others? every, some, etc)
diff --git a/Week2/MAKEME.md b/Week2/MAKEME.md
@@ -2,11 +2,10 @@
 
 ```
 Topics discussed this week:
-• Functions + JSON/Arrays
-• Array Manipulations
 • JSON
-• Map and filter
-• Arrow functions
+• Functions advanced
+• Array Manipulations
+• Map, filter, & reduce
 ```
 
 > [Here](/Week3/README.md) you find the readings you have to complete before the third lecture.
@@ -139,7 +138,13 @@ If that's the case, try and fix the error. When done, run the tests again: `npm
 
 Repeat the previous step until all (= 2 in this case) tests pass.
 
-## Step 3: ROVER
+## Step 3: JSON parsing
+
+1. Create an HTML file
+2. Insert a script tag that points to squirtle-sprites.js
+3. In squirtle-sprites.js, call fetchPokemonData() and convert the JSON string it returns to a javascript object so you can access its properties
+4. Display the sprite images (located in the parsed object) in the HTML page. You'll need to do some DOM manipulation kinda of stuff (maybe element.appendChild?)
+*Bonus Challenge*: Can you use an array method to loop over all sprites so you don't have to manually type each?
 
 Finish up to chapter 7: JSON on [roverjs.com](http://roverjs.com/)!
 
@@ -171,3 +176,6 @@ Go over your homework one last time:
 If the answer is 'yes' to all preceding questions you are ready to follow these instructions:
 
 - [Handing in homework](https://github.com/HackYourFuture/fundamentals/blob/master/fundamentals/homework_pr.md)
+
+### Do you have even more time?
+Read the _Eloquent Javascript_ chapters in the [Week 2 Readme](./README.md)
diff --git a/Week2/README.md b/Week2/README.md
@@ -4,37 +4,32 @@
 
 ```
 In week two we will discuss the following topics:
-• Functions + JSON/Arrays
-• Array Manipulations
 • JSON
-• Map and filter
-• Arrow functions
+• Functions advanced
+• Array Manipulations
+• Map, filter, & reduce
 ```
 
 ## Here are resources that we like you to read as a preparation for the coming lecture. 
 
 ### JSON
-- [JSON](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON) (MDN)
+- [FreeCodeCamp JSON](https://www.youtube.com/watch?v=B-k76DMOj2k)
+- [What is JSON and why does one use it?](https://www.quora.com/What-is-JSON-and-why-does-one-use-it/answer/Prid-Speed?ch=10&share=0b6f9763&srid=XxbK)
 
 ### Map and Filter
 - :dizzy: [Fun fun functional](https://www.youtube.com/playlist?list=PL0zVEGEvSaeEd9hlmCXrk5yUyqUag-n84) :dizzy: Check the first 3-4 videos.
 
-### Code conventions
-- Code conventions: http://crockford.com/javascript/code.html
-
 ### Array cardio
 - Wes Bos' awesome free tutorials. Just make a free account and do Array Cardio #1 [here](https://javascript30.com/)
 
-### From _Eloquent JavaScript_
-
-- Objects continued: http://eloquentjavascript.net/06_object.html
-
-
 ## Recommended readings
+These chapters from _Eloquent JavaScript_ are a bit advanced, but give in-depth explanations of the topics that will be discussed during the lecture. If you have the time, try giving these chapters a read. 
 
-This chapter from _Eloquent JavaScript_ gives in-depth explanations of the topics that will be discussed during the lecture. Highly recommended (if time permits).
+- Chapter 3 - [Functions](https://eloquentjavascript.net/03_functions.html)
+- Chapter 4 - [Data Structures: Objects and Arrays](https://eloquentjavascript.net/04_data.html)
+- Chapter 5 [Higher-Order Functions](https://eloquentjavascript.net/05_higher_order.html)
 
-- Chapter 3 - [Functions](http://eloquentjavascript.net/03_functions.html)
-- Chapter 5 - [Higher-Order Functions](http://eloquentjavascript.net/05_higher_order.html)
+#### For fun
+ [The Weird History of JavaScript](https://www.youtube.com/watch?v=Sh6lK57Cuk4) shows just how haphazard the evolution of Javascript actually was. 
 
 _Please go through the material and come to class prepared!_
diff --git a/Week2/example.html b/Week2/example.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="UTF-8" />
+    <title>Sample exercise</title>
+    <style>
+      body {
+        font-family: sans-serif;
+      }
+      #advice {
+        color: slateblue;
+      }
+    </style>
+  </head>
+  <body>
+    <h3>Here is your advice for the day:</h3>
+    <h1 id="advice"></h1>
+    <script type="text/javascript" src="./lecture-exercises.js"></script>
+  </body>
+</html>
diff --git a/Week2/homework/squirtle-sprites.js b/Week2/homework/squirtle-sprites.js
diff --git a/Week2/lecture-exercises.js b/Week2/lecture-exercises.js
@@ -0,0 +1,17 @@
+async function getRandomAdvice() {
+  const adviceReq = fetch('https://api.adviceslip.com/advice'); // send request
+  const adviceResponse = await adviceReq; // wait until something comes back
+  // const jsonString = await adviceResponse.text();
+  // return jsonString
+  // const adviceData = JSON.parse(jsonString)
+  // return jsonString
+  const adviceData = await adviceResponse.json(); // parses JSON string into native JavaScript object
+  return adviceData.slip.advice;
+}
+
+async function setRandomAdvice() {
+  const adviceEl = document.getElementById('advice');
+  adviceEl.innerText = await getRandomAdvice();
+}
+
+setRandomAdvice();