function toggleFiltering()

in index.js [612:638]

• 21 lines of code
• 2 McCabe index (conditional complexity)

function toggleFiltering () {
  var filterDescription = document.querySelector('.filter-toggle')
  var shouldPreserveSelection = !filterDescription.classList.contains('hidden')

  filterDescription.classList.toggle('hidden')
  var selected = document.querySelectorAll('.filter-by-status input[type=checkbox]:checked')
  var filterButton = document.querySelector('.filter-button')

  if (shouldPreserveSelection) {
    filterSelection = [].map.call(selected, function (checkbox) { return checkbox.id })
    ;[].forEach.call(selected, function (checkbox) { checkbox.checked = false })

    filterButton.setAttribute('aria-pressed', 'false')
  } else { // restore it
    filterSelection.forEach(function (id) {
      var checkbox = document.getElementById(id)
      checkbox.checked = true
    })

    filterButton.setAttribute('aria-pressed', 'true')
  }

  document.querySelector('.expandable').classList.remove('expanded')
  filterButton.classList.toggle('active')

  filterProposals()
}