const SumNumbers = (a, b) => {
    if (typeof a !== 'number' || typeof b !== 'number') {
        return "a and b не числа!"
    }

    if (a <= 0 || b <= 0) {
        return "Неприемливые числа"
    }

    return a + b
}

let sum = SumNumbers(55, 5)
console.log(sum)

const myObject = {
    x: 12,
    y: true,
    z: 'hi'
}

Object.values(myObject).forEach(values => {
    console.log(values)
})

const myObject = {
    x: 12,
    y: true,
    z: 'hi'
}

Object.keys(myObject).forEach(keys => {
    console.log(keys)
})

class Comment {
    constructor(text) {
        this.text = text
        this.votesQty = 0
    }

    upvote() {
        this.votesQty += 1
    }
}

const firstComment = new Comment('First comment')

1 === '1'

Чувствую, что с этим я ебаться буду долго...

fetch('https://jsonplaceholder.typicode.com/posts')
  .then((response) => response.json())
  .then((json) => console.log(json));

const timerPromise = () =>
    new Promise((resolve, reject) => 
        setTimeout(() => resolve(), 2000))

const asyncFn = async () => {
    console.log('Timer starts')
    const startTime = performance.now()
    await timerPromise()
    const endTime = performance.now()
    console.log('Timer ended', endTime - startTime)
}

asyncFn()