title: How do get sections inside my TableView using swift3
body: <p>I want to add sections in my TableView,</p>
  
  <p>I have:</p>
  
  <pre><code> var sections = SectionData().getSectionsFromData() // Declaration: [(key: String, value: [String])]
  </code></pre>
  
  <p>All my data stored in "sections". In the key stored all the ABC and in the values all the items that start with one of the 26 letter accordingly</p>
  
  <p>I can't figure it out how to access the values</p>
  
  <p>my code:</p>
  
  <pre><code>var sections = SectionData().getSectionsFromData()
  
  override func numberOfSections(in tableView: UITableView) -&gt; Int {
      // #warning Incomplete implementation, return the number of sections
      return sections.count
  }
  
  override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -&gt; Int {
      // #warning Incomplete implementation, return the number of rows
      return sections.[section].count // error 
  }
  </code></pre>