1_holiday destinations - js advanced exam

function addDestination () {
    const html = {
        city: document.getElementsByClassName('inputData')[0],
        country: document.getElementsByClassName('inputData')[1],
        seasons: document.getElementById(`seasons`),
        outputE: document.getElementById('destinationsList'),
    }

    function createRow (d, s) {
        const rowE = document.createElement('tr')
        const destination = document.createElement('td')
        const season = document.createElement('td')

        destination.innerHTML = d
        season.innerHTML = `${s[0].toLocaleUpperCase()}${s.slice(1)}`

        rowE.appendChild(destination)
        rowE.appendChild(season)

        return rowE
    }

    function updateSeason () {
        const season = document.getElementById(html.seasons.value.toLocaleLowerCase())

        season.value = Number(season.value) + 1
    }

    function clearInput () {
        html.city.value = ''
        html.country.value = ''
        html.seasons.selected = 'Summer'
    }

    function isValidInput () {
        return html.city.value !== '' && html.country.value !== ''
    }

    function getData () {
        return [`${html.city.value}, ${html.country.value}`, html.seasons.value]
    }

    if (isValidInput()) {
        html.outputE.appendChild(createRow(...getData()))
        updateSeason()
        clearInput()
    }
}