Divide the data of array to two arrays

Question

I’m getting a series of data from a json like it

   [
  {
   "name": "david",
    "gender": "Male"
  },
  {
    "name": "Sara",
    "gender": "Female"
  },
  {
    "name": "Philipp",
    "gender": "Male"
  },
  {
    "name": "Marry",
    "gender": "Female"
  }
]

I get this data and store them into one array

Lets call it names

Now I want to create two other arrays

femaleNames

maleNames

And I want to save all the female name in femaleNames and all the male names in maleNames based on the gender type of data. I don’t that how I can implement this condition in swift 5. Could you please help me? Thanks

Do you want just the names or do you want just the "people" of different genders split out? — Aaron
– Aaron, Commented Feb 14, 2020 at 21:21

Gereon · Accepted Answer · 2020-02-14 21:20:06Z

1

Assuming you have a model struct for your data along these lines:

enum Gender: Decodable, String {
    case female = "Female"
    case male = "Male"
}

struct NameEntry: Decodable {
    let name: String
    let gender: Gender
}

and given a bunch of names in

var names: [NameEntry]

your can filter easily using

let femaleNames = names.filter { $0.gender == .female }
let maleNames = names.filter { $0.gender == .male }

answered Feb 14, 2020 at 21:20

Gereon

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Comments

Mac3n · Accepted Answer · 2020-02-14 21:24:23Z

1

You can use filter over the array;


struct YourStruct: Decodable {
    let name: String
    let gender: String
}

let femaleNames = names.filter( { $0.gender == "Female"})
let maleNames = names.filter( { $0.gender == "Male"})

edited Feb 14, 2020 at 21:24

answered Feb 14, 2020 at 21:15

Mac3n

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3 Comments

Aaron Over a year ago

Might want to include a note in there about assuming that you've got the arrays encoded to some sort of struct/class that have a gender and maybe a name property on them.

Philip Over a year ago

Thank you so much, but how I can say if it’s male do that or if it’s female do that?

Mac3n Over a year ago

You should decode your JSON data to a struct and then using filter. I update it and add struct

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