freeCodeCamp/seed/challenges/object-oriented-and-functional-programming.json

{
  "name": "Object Oriented and Functional Programming \n - \n Under Construction From Challenge 4 Onwards",
  "order" : 0.009,
  "note": [
    "inheritance"
  ],
  "challenges": [
    {
      "id":"cf1111c1c15feddfaeb1bdef",
      "title":"Waypoint: A Review On Objects",
      "difficulty":0,
      "description":[
        "",
        "Before we dive into Object Oriented Programming Let's take a quick look over objects in javascript"
      ],
      "tests":[
        "assert(motorBike.wheels===2, 'You should have given motorBike two wheels');",
        "assert(motorBike.engine===1, 'You should have given motorBike one engine');",
        "assert(motorBike.seats===1, 'You should have given motorBike one seat');"
      ],
      "challengeSeed":[
        "//Here is a sample Object",
        "var car = {",
        " \"wheels\":4,",
        " \"engine\":1,",
        " \"seats\":5",
        "};",
        "",
        "//Now Let's make a similar Object called motorBike",
        "//Give it two wheels, one engine and one seat",
        "var motorBike = {",
        " \"wheels\":0,",
        " \"engine\":0,",
        " \"seats\":0",
        "};",
        "",
        "(function(){return(JSON.stringify(motorBike));})();"
      ],
      "challengeType":1
    },
    {
      "id":"cf1111c1c15feddfaeb2bdef",
      "title":"Waypoint: Constructing Objects",
      "difficulty":0,
      "description":[
        "",
        "We are also able to create Objects using functions"
      ],
      "tests":[
        "assert((new Car()).wheels === 4, \"myCar.wheels should be four. Make sure that you haven't changed this value\");",
        "assert(typeof((new Car()).engine) === 'number', 'myCar.engine should be a number');",
        "assert(typeof((new Car()).seats) === 'number', 'myCar.seats should be a number');"
      ],
      "challengeSeed":[
        "//Let's add the properties engine and seats to the car in the same way that the property wheels has been added below. They should both be numbers",
        "var Car = function(){",
        " this.wheels = 4;",
        "};",
        "",
        "//Instantiated Here",
        "var myCar = new Car();",
        "",
        "(function(){return(JSON.stringify(myCar));})();"
      ],
      "challengeType":1
    },
    {
      "id":"cf1111c1c15feddfaeb3bdef",
      "title":"Waypoint: Understanding Public and Private Properties",
      "difficulty":0,
      "description":[
        "",
        "In the last challenge we use the <code>this</code> to reference public properties the current object or function.",
        "We can also create variables and functions that aren't accessible from outside the Object"
      ],
      "tests":[
        "assert(answers.Q1===true, 'The number Gear is Publicly Accessible');",
        "assert(answers.Q2===true, 'The function getGear is Publicly Accessible');",
        "assert(answers.Q3===false, 'The function addStyle is not Publicly Accessible');"
      ],
      "challengeSeed":[
        "//Let's create an object with a two functions. One attached as a property and one not.",
        "var Car = function(){",
        "   this.gear = 1;",
        "   function addStyle(styleMe){",
        "       return('The Current Gear Is: ' + styleMe);",
        "   }",
        "   this.getGear = function(){",
        "       return(addStyle(this.gear));",
        "   };",
        "};",
        "",
        "//Quick Quiz!",
        "//Say whether the follow statements are true or false in the answers object below",
        "",
        "//Statement One",
        "//The number gear publicly accessible",
        "",
        "//Statement Two",
        "//The function getGear publicly accessible",
        "",
        "//Statement Three",
        "//The function addStyle publicly accessible",
        "",
        "var answers = {",
        "   'Q1':false,",
        "   'Q2':false,",
        "   'Q3':false",
        "};",
        "",
        "//Instantiated Here",
        "var myCar = new Car();",
        "",
        "(function(){return(JSON.stringify(answers));})();"
      ],
      "challengeType":1
    },
    {
      "id":"cf1111c1c13feddfaeb6bdef",
      "title":"Waypoint: Instantiation",
      "difficulty":0,
      "description":[
        "",
        "Instantiation at it's most basic level is where you are creating a copy of an object from a template for use at a later time"
      ],
      "tests":[
        "assert((new Car()).wheels === 4, 'The property wheels should be four in the object constructor');",
        "assert(typeof((new Car()).engine) === 'undefined', 'There should not be a property engine in the object constructor');",
        "assert(myCar.wheels === 4, 'The property wheels of myCar should be four');",
        "assert(typeof(myCar.engine) === 'number', 'The property engine of myCar should be a number');"
      ],
      "challengeSeed":[
        "var Car = function(){",
        "   this.wheels = 4;",
        "};",
        "",
        "var myCar = new Car();",
        "",
        "//Add the property engine to myCar using dot notation and make it a number",
        "",
        "",
        "(function(){return(JSON.stringify(myCar));})();"
      ],
      "challengeType":1
    },
    {
      "id":"cf1111c1c13feddfaeb9bdef",
      "title":"Waypoint: Inheritance",
      "difficulty":0,
      "description":[
        ""
      ],
      "tests":[
        "assert(1==2, '');"
      ],
      "challengeSeed":[
        "Under Construction"
      ],
      "challengeType":1
    },
    {
      "id":"cf1111c1c14feddfaeb1bdef",
      "title":"Waypoint: Prototypical Inheritance",
      "difficulty":0,
      "description":[
        ""
      ],
      "tests":[
        "assert(1==2, '');"
      ],
      "challengeSeed":[
        "Under Construction"
      ],
      "challengeType":1
    },
    {
      "id":"cf1111c1c13feddfaeb7bdef",
      "title":"Waypoint: Closures",
      "difficulty":0,
      "description":[
        ""
      ],
      "tests":[
        "assert(1==2, '');"
      ],
      "challengeSeed":[
        "Under Construction"
      ],
      "challengeType":1
    },
    {
      "id":"cf1111c1c14feddfaeb3bdef",
      "title":"Waypoint: Factories",
      "difficulty":0,
      "description":[
        ""
      ],
      "tests":[
        "assert(1==2, '');"
      ],
      "challengeSeed":[
        "Under Construction"
      ],
      "challengeType":1
    },
    {
      "id":"cf1111c1c14feddfaeb5bdef",
      "title":"Waypoint: Pure Functions",
      "Note":"May need a waypoint before each topic to announce what it is :p",
      "difficulty":0,
      "description":[
        ""
      ],
      "tests":[
        "assert(1==2, '');"
      ],
      "challengeSeed":[
        "Under Construction"
      ],
      "challengeType":1
    },
    {
      "id":"cf1111c1c14feddfaeb6bdef",
      "title":"Waypoint: Currying Functions",
      "difficulty":0,
      "description":[
        ""
      ],
      "tests":[
        "assert(1==2, '');"
      ],
      "challengeSeed":[
        "Under Construction"
      ],
      "challengeType":1
    },
    {
      "id":"cf1111c1c14feddfaeb7bdef",
      "title":"Waypoint: Composition",
      "difficulty":0,
      "description":[
        ""
      ],
      "tests":[
        "assert(1==2, '');"
      ],
      "challengeSeed":[
        "Under Construction"
      ],
      "challengeType":1
    },
    {
      "id":"cf1111c1c14feddfaeb8bdef",
      "title":"Waypoint: Functors",
      "difficulty":0,
      "description":[
        ""
      ],
      "tests":[
        "assert(1==2, '');"
      ],
      "challengeSeed":[
        "Under Construction"
      ],
      "challengeType":1
    },
    {
      "id":"cf1111c1c14feddfaeb9bdef",
      "title":"Waypoint: Currying Functions",
      "Notes":[
        "",
        ""
      ],
      "difficulty":0,
      "description":[
        ""
      ],
      "tests":[
        "assert(1==2, '');"
      ],
      "challengeSeed":[
        "Under Construction"
      ],
      "challengeType":1
    }
  ]
}