classes, static methods, and inheritance

solutions/day-01/classes.js

@@ -0,0 +1,110 @@
+class Person {
+    constructor(firstName='Ivy', lastName='Graham', age=30, country='USA', city='Santa Cruz') {
+        console.log(this) // should be empty upon instantiation
+        this.firstName = firstName
+        this.lastName = lastName
+        this.age = age
+        this.country = country
+        this.city = city
+        this.score = 0
+        this.skills = []
+    }
+    // class methods
+    getFullName() {
+        const fullName = this.firstName + ' ' + this.lastName
+        return fullName
+    }
+    get getScore() {
+        return this.score
+    }
+    set setScore(score) {
+        this.score += score
+    }
+    get getSkills() {
+        return this.skills
+    }
+    set setSkill(skill) {
+        this.skills.push(skill)
+    }
+    getPersonInfo() {
+        let fullName = this.getFullName()
+        let skills = 
+            this.skills.length > 0 &&
+            this.skills.slice(0, this.skills.length - 1).join(', ') +
+            ` and ${this.skills[this.skills.length - 1]}`
+        let formattedSkills = skills ? `They know ${skills}` : ''
+
+        let info = `${fullName} is ${this.age}. They live in ${this.city}, ${this.country}. ${formattedSkills}`
+        return info
+    }
+    static favoriteSkill() {
+        const skills = [
+            'JavaScript',
+            'React Native',
+            'HTML',
+            'SaSS',
+            'Java',
+            'Python'
+        ]
+        const index = Math.floor(Math.random() * skills.length)
+        return skills[index]
+    }
+    static showDateTime() {
+        let now = new Date()
+        let year = now.getFullYear()
+        let month = now.getMonth() + 1
+        let date = now.getDate()
+        let hours = now.getHours()
+        let minutes = now.getMinutes()
+        if (hours < 10) {
+            hours = '0' + hours
+        }
+        if (minutes < 10) {
+            minutes = '0' + minutes
+        }
+
+        let dateMonthYear = date + '.' + month + '.' + year
+        let time = hours + ':' + minutes
+        let fullTime = dateMonthYear + ' ' + time
+        return fullTime
+    }
+}
+
+class Student extends Person{
+    saySomething() {
+        console.log('I am a child of the Person class')
+        console.log(`I am ${this.firstName}.`)
+        console.log(this.getPersonInfo())
+    }
+}
+
+
+const person1 = new Person()
+console.log(person1)
+person1.setScore = 1
+person1.setSkill = 'Acupuncture'
+person1.setSkill = 'Herbal Medicine'
+person1.setSkill = 'Mantic Arts'
+person1.setSkill = 'Traditional Chinese Medicine'
+console.log(person1.getSkills)
+console.log(person1.getPersonInfo())
+
+const person2 = new Person('Derrek', 'Gass', 32, 'USA', 'Santa Cruz')
+console.log(person2)
+person2.setScore = 1
+person2.setSkill = 'JavaScript'
+person2.setSkill = 'React Native'
+person2.setSkill = 'HTML'
+person2.setSkill = 'SaSS'
+person2.setSkill = 'Java'
+person2.setSkill = 'Python'
+console.log(person2.getSkills)
+console.log(person2.getPersonInfo())
+
+console.log(Person.favoriteSkill())
+console.log(Person.showDateTime())
+
+const student1 = new Student('Tobias', 'the Cat', 10, 'USA', 'Santa Cruz')
+student1.setSkill = 'Meowing'
+student1.setSkill = 'Purring'
+console.log(student1.saySomething())