Антон Неверов

const catalogItems = document.querySelectorAll('.select-catalog__item');
const catalogCount = document.querySelector('.select-catalog__title-count');

const updateActiveCount = () => {
  const activeCount = [...catalogItems].filter(i => i.classList.contains('_active')).length
  catalogCount.innerText = activeCount
  if (activeCount > 0) {
    catalogCount.classList.add('_active')
  } else {
    catalogCount.classList.remove('_active')
  }
}

for (const item of catalogItems) {
  item.onclick = ({ target }) => {
    const isActive = target.classList.toggle('_active')
    updateActiveCount()
  }
}

let companyItem = document.querySelectorAll('.company__item');

companyItem.forEach(e => {
    e.addEventListener('mouseover', ({ target }) => {
        target.querySelectorAll('.web-active').forEach(e => {
            e.src="img/web.png";
        });
    });
});

companyItem.forEach(e => {
    e.addEventListener('mouseout', ({ target }) => {
        target.querySelectorAll('.web-active').forEach(e => {
            e.src="img/web-static.png";
        });
    });
});

companyItem.forEach(e => {
    e.addEventListener('mouseover', ({ target }) => {
        target.querySelectorAll('.direction-active').forEach(e => {
            e.src="img/arrow-search-active.png";
        });
    });
});

companyItem.forEach(e => {
    e.addEventListener('mouseout', ({ target }) => {
        target.querySelectorAll('.direction-active').forEach(e => {
            e.src="img/arrow-search.svg";
        });
    });
});

app.use(express.static(__dirname + '/public/css'));

<link rel="stylesheet" type="text/css" href="/css/index.css">

let dataList = {};

fetch('https://api.hh.ru/areas/113').then(response => {
    return response.json();
}).then(
    json => {
      const cities = json.areas.reduce((array, area) => {
        const citiesAtArea = area.areas.reduce((citiesArray, city) => {
          return [...citiesArray, city.name]
        }, [])
        return [...array, ...citiesAtArea]
      }, [])
      
      console.log(cities)
    }
);

function readMore(event) {
    const container = event.target.closest('.reference-body-left-item');
    
    const dots = container.querySelector('.reference-body-left-dots');
    const otherText = container.querySelector('.reference-body-left-more');
    const btnRead = container.querySelector('.reference-body-left-search-read');
    let Starget = event.target;
    
    if (Starget.tagName == 'BUTTON') {
        if (dots.style.display === 'none') {
            dots.style.display = 'inline';
            btnRead.innerHTML = 'Читать далее';
            otherText.style.display = 'none';
        } else {
            dots.style.display = 'none';
            btnRead.innerHTML = 'Скрыть текст';
            otherText.style.display = 'block';
        }
    } else return;
}

while (i <= 10) {
  const result = await get_results(dataObject[i].id);
  i++;
}

Object.keys(jsonKey).each(key => {
  const value = jsonKey[key];
  $(`.${key}`).html(value);
})