Modern Times of #(HashTag) JS Fundamentals

function modernTimesOfHashTag(text) {
  let sentence = text.split(' ');
  let special = [];

  for (let part of sentence) {
    if (part.startsWith('#') && part.length > 1) {
      let specialWord = part.substring(1);
      let isLettersOnly = true;
      for (let i = 0; i < specialWord.length; i++) {
        let charCode = specialWord.charCodeAt(i);
        if ((charCode < 65 || charCode > 90) && (charCode < 97 || charCode > 122)) {
          isLettersOnly = false;
          break;
        }
      }
      if (isLettersOnly) {
        special.push(specialWord);
      }
    }
  }

  console.log(special.join('\n'));
}


OR

function modernTimesOfHashTag(text) {
  let sentence = text.split(' ');
  let special = [];

  for (let part of sentence) {
    if (part.startsWith('#') && part.length > 1) {
      let specialWord = part.substring(1);
      let isLettersOnly = true;
      for (let char of specialWord) {
        if (!/[a-zA-Z]/.test(char)) {
          isLettersOnly = false;
          break;
        }
      }
      if (isLettersOnly) {
        special.push(specialWord);
      }
    }
  }

  console.log(special.join('\n'));
}