What is the purpose this code in flutter?

Question

This the class--

class CategoriesModel{
  String imgUrl;
  String categoriesName;
}

This the function--

List<CategoriesModel> getCategories(){
 List<CategoriesModel> categories = new List();
 CategoriesModel categoriesModel = new CategoriesModel();

 //
 categoriesModel.imgUrl ="";
 categoriesModel.categoriesName = "";
 categories.add(categoriesModel);
 categoriesModel=new CategoriesModel();

 return categories;
}

I did not get this code please explain this in a simple way. Thanks in advance.

Answer 1

It would be good to have more context about why do you need/use this function.

It is simply returning a list of CategoriesModel with a single object and empty.

categoriesModel.imgUrl =""; categoriesModel.categoriesName = ""; categories.add(categoriesModel);

this new object does not makes much sense:

categoriesModel=new CategoriesModel();

Answer 2

class CategoriesModel{
  String imgUrl;
  String categoriesName;
}

You have a class with two properties of type String

---

List<CategoriesModel> getCategories(){
 List<CategoriesModel> categories = new List();
 CategoriesModel categoriesModel = new CategoriesModel();

 //
 categoriesModel.imgUrl ="";
 categoriesModel.categoriesName = "";
 categories.add(categoriesModel);
 categoriesModel=new CategoriesModel();

 return categories;
}

A function, you create a new list and then create a new instance of the class CategoeriesModel() . Then you set the value of imgUrl and categoriesName to empty String and add them to a list. For some reason you create another instance of CategoeriesModel() , and return the list with the values.