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// CODE here for your Lambda Classes
// ## `lambda-classes` - We need a roster of Lambda School personnel. Build it!
// * We have a school to build here! This project will get you used to thinking about classes in JavaScript and building them from a brand new data set.
// * Lambda personnel can be broken down into three different types of `people`.
// * **Instructors** - extensions of Person
// * **Students** - extensions of Person
// * **Project Managers** - extensions of Instructors
// * **IMPORTANT** - You'll need to create 2 - 3 objects for each class and test them according to their unique Attributes. For example:
// #### Person
// * First we need a Person class. This will be our `base-class`
// * Person receives `name` `age` `location` `gender` all as props
// * Person receives `speak` as a method.
// * This method logs out a phrase `Hello my name is Fred, I am from Bedrock` where `name` and `location` are the object's own props
class Person {
constructor(props) {
this.name = props.name
this.age = props.age
this.location = props.location
this.gender = props.gender
}
speak() {
return `Hello my name is ${this.name}, I am from ${this.location}`
}
}
// #### Instructor
// * Now that we have a Person as our base class, we'll build our Instructor class.
// * Instructor uses the same attributes that have been set up by Person
// * Instructor has the following unique props:
// * `specialty` what the Instructor is good at i.e. 'redux'
// * `favLanguage` i.e. 'JavaScript, Python, Elm etc.'
// * `catchPhrase` i.e. `Don't forget the homies`
// * Instructor has the following methods:
// * `demo` receives a `subject` string as an argument and logs out the phrase 'Today we are learning about {subject}' where subject is the param passed in.
// * `grade` receives a `student` object and a `subject` string as arguments and logs out '{student.name} receives a perfect score on {subject}'
const randInRange = (min, max) => Math.round(Math.random() * (max - min) + min)
const clamp = (min, max) => num => (num < min ? min : num > max ? max : num)
class Instructor extends Person {
constructor(props) {
super(props)
this.specialty = props.specialty
this.favLanguage = props.favLanguage
this.catchPhrase = props.catchPhrase
}
demo(subject) {
return `Today we are learning about ${subject}`
}
grade(student, subject) {
return `${student.name} receives a perfect score on ${subject}`
}
setGrade(student, factor) {
const change = randInRange(-factor, factor)
const oldGrade = student.grade
student.grade = clamp(0, 100)(oldGrade + change)
return `${student.name}'s grade has been changed from ${oldGrade} to ${
student.grade
}`
}
}
// #### Student
// * Now we need some students!
// * Student uses the same attributes that have been set up by Person
// * Student has the following unique props:
// * `previousBackground` i.e. what the Student used to do before Lambda School
// * `className` i.e. CS132
// * `favSubjects`. i.e. an array of the student's favorite subjects ['Html', 'CSS', 'JavaScript']
// * Student has the following methods:
// * `listsSubjects` a method that logs out all of the student's favoriteSubjects one by one.
// * `PRAssignment` a method that receives a subject as an argument and logs out that the `student.name has submitted a PR for {subject}`
// * `sprintChallenge` similar to PRAssignment but logs out `student.name has begun sprint challenge on {subject}`
class Student extends Person {
constructor(props) {
super(props)
this.previousBackground = props.previousBackground
this.className = props.className
this.favSubjects = props.favSubjects
this.grade = props.grade || 0
}
listSubjects() {
return this.favSubjects
}
PRAssignments(subject) {
return `${this.name} has submitted a PR for ${subject}`
}
sprintChallenge(subject) {
return `${this.name} has begun sprint challenge on ${subject}`
}
}
// #### Project Mananger
// * Now that we have instructors and students, we'd be nowhere without our PM's
// * ProjectManagers are extensions of Instructors
// * ProjectManagers have the following uniqe props:
// * `gradClassName`: i.e. CS1
// * `favInstructor`: i.e. Sean
// * ProjectManangers have the following Methods:
// * `standUp` a method that takes in a slack channel and logs `{name} announces to {channel}, @channel standy times!
// * `debugsCode` a method that takes in a student object and a subject and logs out `{name} debugs {student.name}'s code on {subject}`
class ProjectManager extends Instructor {
constructor(props) {
super(props)
this.gradClassName = props.gradClassName
this.favInstructor = props.favInstructor
}
standUp(channel) {
return `${this.name} announces to ${channel}, @channel standy times!`
}
debugsCode(student, subject) {
return `${this.name} debugs ${student.name}'s code on ${subject}`
}
}
const fred = new Instructor({
name: "Fred",
location: "Bedrock",
age: 37,
gender: "male",
favLanguage: "JavaScript",
specialty: "Front-end",
catchPhrase: `Don't forget the homies`
})
const jan = new Student({
name: "Jan",
age: 32,
location: "New York",
gender: "N/A",
previousBackground: "Sculptor",
className: "WEB17",
favSubjects: ["Hermeneutics", "Hermetics", "Homotopy Type Theory"]
})
const todd = new ProjectManager({
name: "Todd",
location: "Billerica",
age: 47,
gender: "male",
favLanguage: "Agda",
specialty: "Front-end",
catchPhrase: "Forgettabouddit",
gradClassName: "CS-1",
favInstructor: fred
})
const steve = new Student({
name: "Steve",
age: 82,
location: "Yonkers",
gender: undefined,
previousBackground: "Retiree",
className: "WEB17",
favSubjects: ["Homotopy Type Theory", "Physics"],
grade: 97
})
// Testing
const assert = require("assert")
const cases = [
[todd.speak(), "Hello my name is Todd, I am from Billerica"],
[jan.speak(), "Hello my name is Jan, I am from New York"],
[fred.speak(), "Hello my name is Fred, I am from Bedrock"],
[todd.standUp("#memes"), "Todd announces to #memes, @channel standy times!"],
[todd.debugsCode(jan, "Perl"), "Todd debugs Jan's code on Perl"],
[jan.favSubjects.join(", "), "Hermeneutics, Hermetics, Homotopy Type Theory"],
[
jan.sprintChallenge("Python-I"),
"Jan has begun sprint challenge on Python-I"
],
[jan.grade, 0],
[steve.grade, 97]
]
const runTests = cases => {
cases.forEach(([c, expect]) => {
assert(c === expect, `Expected: ${expect}, received: ${c}`)
})
console.log("All tests passing!")
}
runTests(cases)
todd.setGrade(steve, 30)