Merge pull request LaunchCodeEducation#11 from LaunchCodeEducation/ch-12-objects

Chapter 12: Objects and the Math Object

Author: gildedgardenia

objects-and-math/chapter-examples/ForInLoop.js

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+let tortoiseOne = {
+   species: "Galapagos Tortoise",
+   name: "Pete",
+   weight: 919,
+   age: 85,
+   diet: ["pumpkins", "lettuce", "cabbage"]
+};
+
+// Using a for..in loop, iterate through each property in the tortoiseOne object and print the value to the console.

objects-and-math/chapter-examples/KindnessSelection.js

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+function randomSelection(arr){
+   let index = Math.floor(Math.random()*arr.length);
+   return arr[index];
+ }
+ 
+ let happiness = ['Hope', 'Joy', 'Peace', 'Love', 'Kindness', 'Puppies', 'Kittens', 'Tortoise'];
+ 
+ let words = ['Hello', 'World', 'Python', 'JavaScript', 'Rutabaga'];
+ 
+ for (i=0; i < 8; i++){
+   console.log(randomSelection(happiness));
+ }
+ 
+ //Experiment with the code above. Try to:
+ //a) Print 3 random selections from each array.
+ //b) Have the code randomly pick one array, and then print 2 random items from it.
+ //c) Create a new array, then fill it with one random item from words and happiness. Print the new array.

objects-and-math/exercises/ObjectExercises.js

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+let superChimpOne = {
+   name: "Chad",
+   species: "Chimpanzee",
+   mass: 9,
+   age: 6
+};
+
+let salamander = {
+   name: "Lacey",
+   species: "Axolotl Salamander",
+   mass: 0.1,
+   age: 5
+};
+
+
+// After you have created the other object literals, add the astronautID property to each one.
+
+// Create an array to hold the animal objects.
+
+// Print out the relevant information about each animal.
+
+// Start an animal race!

objects-and-math/studio/ObjectsStudio01.js

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+// Code your selectRandomEntry function here:
+
+
+// Code your buildCrewArray function here:
+
+
+let idNumbers = [291, 414, 503, 599, 796, 890];
+
+// Here are the candidates and the 'animals' array:
+let candidateA = {
+  'name':'Gordon Shumway',
+  'species':'alf',
+  'mass':90,
+  'o2Used':function(hrs){return 0.035*hrs},
+  'astronautID':414
+};
+let candidateB = {
+  'name':'Lassie',
+  'species':'dog',
+  'mass':19.1,
+  'o2Used':function(hrs){return 0.030*hrs},
+  'astronautID':503
+};
+let candidateC = {
+  'name':'Jonsey',
+  'species':'cat',
+  'mass':3.6,
+  'o2Used':function(hrs){return 0.022*hrs},
+  'astronautID':796
+};
+let candidateD = {
+  'name':'Paddington',
+  'species':'bear',
+  'mass':31.8,
+  'o2Used':function(hrs){return 0.047*hrs},
+  'astronautID':291
+};
+let candidateE = {
+  'name':'Pete',
+  'species':'tortoise',
+  'mass':417,
+  'o2Used':function(hrs){return 0.010*hrs},
+  'astronautID':599
+};
+let candidateF = {
+  'name':'Hugs',
+  'species':'ball python',
+  'mass':2.3,
+  'o2Used':function(hrs){return 0.018*hrs},
+  'astronautID':890
+};
+
+let animals = [candidateA,candidateB,candidateC,candidateD,candidateE,candidateF];
+
+// Code your template literal and console.log statements:

objects-and-math/studio/ObjectsStudio02.js

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+// Code your orbitCircumference function here:
+
+
+// Code your missionDuration function here:
+
+
+// Copy/paste your selectRandomEntry function here:
+
+
+// Code your oxygenExpended function here:
+
+
+// Candidate data & crew array.
+let candidateA = {
+   'name':'Gordon Shumway',
+   'species':'alf',
+   'mass':90,
+   'o2Used':function(hrs){return 0.035*hrs},
+   'astronautID':414
+ };
+ let candidateB = {
+   'name':'Lassie',
+   'species':'dog',
+   'mass':19.1,
+   'o2Used':function(hrs){return 0.030*hrs},
+   'astronautID':503
+ };
+ let candidateC = {
+   'name':'Jonsey',
+   'species':'cat',
+   'mass':3.6,
+   'o2Used':function(hrs){return 0.022*hrs},
+   'astronautID':796
+ };
+ let candidateD = {
+   'name':'Paddington',
+   'species':'bear',
+   'mass':31.8,
+   'o2Used':function(hrs){return 0.047*hrs},
+   'astronautID':291
+ };
+ let candidateE = {
+   'name':'Pete',
+   'species':'tortoise',
+   'mass':417,
+   'o2Used':function(hrs){return 0.010*hrs},
+   'astronautID':599
+ };
+ let candidateF = {
+   'name':'Hugs',
+   'species':'ball python',
+   'mass':2.3,
+   'o2Used':function(hrs){return 0.018*hrs},
+   'astronautID':890
+ };
+ 
+ let crew = [candidateA,candidateC,candidateE];
+ 

objects-and-math/studio/ObjectsStudio03.js

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+// Code your crewMass function here:
+
+
+// Code your fuelRequired function here:
+
+
+// The pre-selected crew is in the array at the end of this file.
+// Feel free to add, remove, or switch crew members as you see fit.
+
+let candidateA = {
+   'name':'Gordon Shumway',
+   'species':'alf',
+   'mass':90,
+   'o2Used':function(hrs){return 0.035*hrs},
+   'astronautID':414
+ };
+ let candidateB = {
+   'name':'Lassie',
+   'species':'dog',
+   'mass':19.1,
+   'o2Used':function(hrs){return 0.030*hrs},
+   'astronautID':503
+ };
+ let candidateC = {
+   'name':'Jonsey',
+   'species':'cat',
+   'mass':3.6,
+   'o2Used':function(hrs){return 0.022*hrs},
+   'astronautID':796
+ };
+ let candidateD = {
+   'name':'Paddington',
+   'species':'bear',
+   'mass':31.8,
+   'o2Used':function(hrs){return 0.047*hrs},
+   'astronautID':291
+ };
+ let candidateE = {
+   'name':'Pete',
+   'species':'tortoise',
+   'mass':417,
+   'o2Used':function(hrs){return 0.010*hrs},
+   'astronautID':599
+ };
+ let candidateF = {
+   'name':'Hugs',
+   'species':'ball python',
+   'mass':2.3,
+   'o2Used':function(hrs){return 0.018*hrs},
+   'astronautID':890
+ };
+ 
+ let crew = [candidateB,candidateD,candidateF];
+