A few more updates

Ch05/05_02/transcript.js

@@ -5,8 +5,13 @@ var pageNames = [
   "Contact Us",
   "JavaScript Playground",
   "News",
-  "Blog"
+  "Blog",
 ];
+
+for (let i = 0; i < pageNames.length; i += 1) {
+  console.log(i, pageNames[i]);
+}
+
 for (var p in pageNames) {
   console.log(p, pageNames[p]);
 }
@@ -21,7 +26,7 @@ var pages = {
   second: "About Us",
   third: "Contact Us",
   fourth: "JavaScript Playground",
-  fifth: "Blog"
+  fifth: "Blog",
 };
 for (var p in pages) {
   if (pages.hasOwnProperty(p)) {

Ch05/05_03/transcript.js

@@ -1,47 +1,56 @@
-// for loop
-for (let i = 0; i < 10; i++) {
-  console.log(i);
+// Creating a new Map instance
+var theMap = new Map();
+
+// This object is a bird
+var bird = {
+  genus: "corvus",
+  species: "corvax",
+  commonName: "raven",
+};
+
+// Here is a map using the same structure
+var birdMap = new Map();
+birdMap.set("genus", "corvus");
+birdMap.set("species", "corvax");
+birdMap.set("commonName", "raven");
+
+birdMap.get("genus"); // 'corvus'
+
+birdMap.has("genus"); // true
+birdMap.has("corvus"); // false (keys only)
+
+// for...of loops work on Maps, with key and value returned
+for (let value of birdMap) {
+  console.log(`${value[0]} is ${value[1]}`);
 }
 
-// same thing as a while loop
-let i = 0;
-while (i < 10) {
-  console.log(i + "... This will go until we hit 10");
-  i += 1;
+// With destructuring, those parts can be unpacked into separate variables
+for (let [key, value] of birdMap) {
+  console.log(`${key} is ${value}`);
 }
 
-var myList = [true, true, true, false, true, true];
+// Object.entries turns an object into the nested arrays that can make a Map
+var birdMap2 = new Map(Object.entries(bird));
 
-var myItem = null;
+// This array has two copies of its first item
+let myList = [1, 1, 2, 3, 5, 8, 13, "fibonacci"];
 
-while (myItem !== false) {
-  console.log(
-    "myList has " +
-      myList.length +
-      " items now. This loop will keep going until we pop a false."
-  );
-  myItem = myList.pop();
-}
+// The same thing using the Set API
+let mySet = new Set();
+mySet.add(1);
+mySet.add(1); // this won't change mySet, since 1 is already in there
+mySet.add(2);
+mySet.add(3);
+// ... this gets tedious
 
-var counter = 1;
-while (true) {
-  console.log(counter);
-  counter++;
-  break; // comment out this break statement to make this loop go forever and potentially lock up your web browser
-}
+// An array can be turned into a set
+// If you want to quickly remove all duplicates from an array, this is a good tool!
+let mySet2 = new Set(myList);
 
-var myList = [true, true, true, false, true, true];
-
-var myItem = false;
-do {
-  console.log(
-    "myList has " +
-      myList.length +
-      " items now. This loop will go until we pop a false."
-  );
-  myItem = myList.pop();
-} while (myItem !== false);
-
-// More info:
-// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/while
-// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/do...while
+mySet2.has(3); // true
+mySet2.has(12); // false
+
+// For...of loop iteration works
+for (let item of mySet2) {
+  console.log(`${item} is contained in mySet`);
+}

Ch05/05_04/transcript.js

@@ -1,56 +1,47 @@
-// Creating a new Map instance
-var theMap = new Map();
-
-// This object is a bird
-var bird = {
-	genus : 'corvus',
-	species : 'corvax',
-	commonName: 'raven'
-};
-
-// Here is a map using the same structure
-var birdMap = new Map();
-birdMap.set('genus', 'corvus');
-birdMap.set('species', 'corvax');
-birdMap.set('commonName', 'raven');
-
-birdMap.get('genus'); // 'corvus'
-
-birdMap.has('genus'); // true
-birdMap.has('corvus'); // false (keys only)
-
-// for...of loops work on Maps, with key and value returned
-for (let value of birdMap) {
-  console.log(`${value[0]} is ${value[1]}`);
+// for loop
+for (let i = 0; i < 10; i++) {
+  console.log(i);
 }
 
-// With destructuring, those parts can be unpacked into separate variables
-for (let [key, value] of birdMap) {
-  console.log(`${key} is ${value}`);
+// same thing as a while loop
+let i = 0;
+while (i < 10) {
+  console.log(i + "... This will go until we hit 10");
+  i += 1;
 }
 
-// Object.entries turns an object into the nested arrays that can make a Map
-var birdMap2 = new Map(Object.entries(bird));
+var myList = [true, true, true, false, true, true];
 
-// This array has two copies of its first item
-let myList = [1, 1, 2, 3, 5, 8, 13, 'fibonacci'];
+var myItem = null;
 
-// The same thing using the Set API
-let mySet = new Set();
-mySet.add(1);
-mySet.add(1); // this won't change mySet, since 1 is already in there
-mySet.add(2);
-mySet.add(3);
-// ... this gets tedious
-
-// An array can be turned into a set
-// If you want to quickly remove all duplicates from an array, this is a good tool!
-let mySet2 = new Set(myList);
+while (myItem !== false) {
+  console.log(
+    "myList has " +
+      myList.length +
+      " items now. This loop will keep going until we pop a false."
+  );
+  myItem = myList.pop();
+}
 
-mySet2.has(3); // true
-mySet2.has(12); // false
+var counter = 1;
+while (true) {
+  console.log(counter);
+  counter++;
+  break; // comment out this break statement to make this loop go forever and potentially lock up your web browser
+}
 
-// For...of loop iteration works
-for (let item of mySet2) {
-  console.log(`${item} is contained in mySet`);
-}
+var myList = [true, true, true, false, true, true];
+
+var myItem = false;
+do {
+  console.log(
+    "myList has " +
+      myList.length +
+      " items now. This loop will go until we pop a false."
+  );
+  myItem = myList.pop();
+} while (myItem !== false);
+
+// More info:
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/while
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/do...while

Ch06/06_03/transcript.js

@@ -4,8 +4,8 @@ function speakSomething(what = "Default speech", howMany = 10) {
   }
 }
 
-speakSomething("Hey hey", 5);
-speakSomething("Hey hey");
+speakSomething("Good morning", 5);
+speakSomething("Good morning");
 speakSomething();
 
 function addingMachine() {

Ch06/06_04/transcript.js

@@ -1,7 +1,7 @@
 var calvin = {
   name: "Calvin",
   bestFriend: "Hobbes",
-  form: "human boy"
+  form: "human boy",
 };
 
 // you can also pass an object to a function
@@ -47,7 +47,7 @@ function transmogrifyCopy(calvin) {
 
   // generate a random number between 1 and 5
   var randomNumber = Math.floor(Math.random() * 5) + 1;
-  
+
   var newForm = calvin.form; // by default, do not change
 
   switch (randomNumber) {
@@ -77,11 +77,11 @@ function transmogrifyCopy(calvin) {
   return {
     name: calvin.name,
     bestFriend: calvin.bestFriend,
-    form: newForm
+    form: newForm,
   };
 }
 
 // More info:
 // https://en.wikipedia.org/wiki/Calvin_and_Hobbes
 // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Functions
-// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function