function activateTab()

in antora/supplemental-ui/js/tabsBehavior.js [51:58]


  function activateTab (e) {
    var tab = this.tab
    var pane = this.pane
    find('.tabs li, .tab-pane', this.tabset).forEach(function (it) {
      it === tab || it === pane ? it.classList.add('is-active') : it.classList.remove('is-active')
    })
    e.preventDefault()
  }