title: Store JSON data into model class array in Swift 4
body: <p>I want to store the fetched JSON data to my model class array propertyArray. Some how I got the JSON data using Alamofire library and now I want to parse that data to the properties of PropertyList model class. I am not able to parse JSON data to propertyArray. I referred many other solutions to this question on stack overflow but did not get any appropriate solution.</p>
  
  <p><strong>Declared Model Class Array</strong></p>
  
  <pre><code>var propertyArray: [PropertyList]? = []
  </code></pre>
  
  <p><strong>Alamofire Function</strong>      </p>
  
  <pre><code>func dataPass()  {
      print("Landlord id is \(land.id)")
      let  para: Parameters = ["id": land.id]
      Alamofire.request(URL_Landlord_Property_List, method: .post, parameters: para).responseJSON { response in
          if let dictionary = response.result.value as? [String : AnyObject]{
              var prop = PropertyList()
              let data = dictionary["data"] as! [Any]
              print(data)
          }
      }
  }
  </code></pre>
  
  <p><strong>PropertyList</strong></p>
  
  <pre><code>import Foundation
  
  struct PropertyList{
      var property_id: String?
      var user_id: String?
      var property_code: String?
      var property_added_date: String?
      var property_updated_date: String?
      var property_termination_date: String?
      var property_ASYS_no: String?
      var propertyCode: String?
      var property_address_1:String?
      var property_address_2: String?
      var property_address_3: String?
      var property_city: String?
      var property_cluster:String?
      var property_area:String?
      var property_postcode: String?
      var property_landlord_ref_code: String?
      var property_landlord_id: String?
  }
  </code></pre>
  
  <p><strong>JSON Data</strong></p>
  
  <pre><code>{
    "success": true,
    "data": [
      {
        "property_id": "1",
        "user_id": "1",
        "property_code": "0001",
        "property_added_date": "2017-12-13",
        "property_updated_date": "2017-12-13 00:00:00",
        "property_termination_date": null,
        "property_ASYS_no": "ASYS 001",
        "propertyCode": "0001-PUNE1",
        "property_address_1": "PUNE1",
        "property_address_2": "PUNE2",
        "property_address_3": "PUNE3",
        "property_city": "PUNE",
        "property_cluster": "1",
        "property_area": "1",
        "property_postcode": "424031",
        "property_landlord_ref_code": null,
        "property_landlord_id": "1"
      },
      {
        "property_id": "2",
        "user_id": "1",
        "property_code": "0002",
        "property_added_date": "2017-12-14",
        "property_updated_date": "2017-12-18 00:00:00",
        "property_termination_date": null,
        "property_ASYS_no": "asys 0200",
        "propertyCode": "0002-hadpasar1",
        "property_address_1": "hadpasar1",
        "property_address_2": "hadpasar2",
        "property_address_3": "hadpasar3",
        "property_city": "pune",
        "property_cluster": "9",
        "property_area": "2",
        "property_postcode": "012121",
        "property_landlord_ref_code": null,
        "property_landlord_id": "1"
      }
    ]
  }
  </code></pre>