CodeRoll | Frontend

function sum(a, b) {
  return a + b
}

console.log(sum(1, "2"))

function Person(firstName, lastName) {
  this.firstName = firstName
  this.lastName = lastName
}

const john = new Person("John", "Smith")
const jane = Person("Jane", "Air")

console.log(john)
console.log(jane)

function Person(firstName, lastName) {
  this.firstName = firstName
  this.lastName = lastName
}

const person = new Person("John", "Smith")
Person.getFullName = function () {
  return `${this.firstName} ${this.lastName}`
}

console.log(person.getFullName())

function bark() {
  console.log("Woof!")
}

bark.animal = "dog"

console.log(bark.animal)

// обратите внимание: код выполняется в нестрогом режиме
let greeting
greetign = {} // опечатка!
console.log(greetign)

class Chameleon {
  static colorChange(newColor) {
    this.newColor = newColor
    return this.newColor
  }

  constructor({ newColor = "green" } = {}) {
    this.newColor = newColor
  }
}

const freddie = new Chameleon({ newColor: "pink" })
freddie.colorChange("orange")