inomdzhon

// other way
function isNumber(evt) {
  evt = (evt) ? evt : window.event;
  var charCode = (evt.which) ? evt.which : evt.keyCode;
  if (charCode > 31 && (charCode < 48 || charCode > 57)) {
    return false;
  }
  return true;
}

inomdzhon

const validateMethods = {
  noMeta: function (arrayHashtag) {
    return arrayHashtag.some((hashtag) => hashtag.trim() === '#');
  },

  countExceeded: function (arrayHashtag, maxCount) {
    return arrayHashtag.length > maxCount;
  },

  lengthExceeded: function (arrayHashtag, maxLength) {