code: function checkCombinator1(i) {
    if (i < tokensLength && tokens[i++].type === TokenType.GreaterThanSign &&
        i < tokensLength && tokens[i++].type === TokenType.GreaterThanSign &&
        i < tokensLength && tokens[i++].type === TokenType.GreaterThanSign)
      return 3;
  
    return 0;
  }
docs: (1) `>>>`
  
  @param {Number} i
  @return {Number}