Core htmx API test

• remove element with delay properly31ms ‣

  var div = make('<div><a></a></div>')
  var a = htmx.find(div, 'a')
  htmx.remove(a, 10)
  div.innerHTML.should.not.equal('')
  setTimeout(function() {
    div.innerHTML.should.equal('')
    done()
  }, 30)