[Solved] Populate CollectionView and TableView using objects at different index of same array [closed]

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You can use filter method of array:

//this filter will return you all objects whose group type is equal to 1
let collectionArray = (product_groups?.filter({$0.group_type == 1})) 
//this filter will return you all objects whose group type is equal to 2
let tableArray = (product_groups?.filter({$0.group_type == 2}))

For group title to be section header:

- (nullable NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
      return tableArray[section].group_title
}

For products to display in each cell:

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
      //cell code...
      cell.titleLabel.text = tableArray[indexPath.section][indexpPath.row].product_name
      // cell code
}

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solved Populate CollectionView and TableView using objects at different index of same array [closed]