CODEWITHSUNDEEP
iosswiftdictionary
Shivam Gaur
Shivam Gaur

Reputation: 541

How to parse data effectively

I've a data coming from api which is in the form

"A,B,C,D,E\n

17945,10091,10088,3907,10132\n

2,12,13,48,11"

in the above form.

The meaning of data is A is mapped to 17945 and 2 (A->17945->2) similarly for others. I want to save this data on my model array

struct DataModel {
        var name : String
        var id1 : String
        var id2 : String            
    }

The question is how do I do this effectively.

What Im thinking is splitting the the data from api , creating arrays respectively and initialising the data model accordingly, but is there a another way to do this using dictionaries , it is not neccassary to use model here , I just need all the respective data in one go.

Upvotes: 0

Views: 83

Answers (2)

Alexandr Kolesnik
Alexandr Kolesnik

Reputation: 2204

I don't know if it is what you need, but one of the variants how to

struct DataModel {

var name: String
var id1: String
var id2: String

public init(n: String, i1: String, i2: String) {
    name = n
    id1 = i1
    id2 = i2
}

}

let numberOfArrays = string.components(separatedBy: "\n").count
let aString = string.replacingOccurrences(of: "\n", with: ",").components(separatedBy: ",")
let step = aString.count / numberOfArrays
for i in 0..<step {
    allElements.append(DataModel(n: aString[i], i1: aString[i + step], i2: aString[i + step * 2]))
}

UPDATE:

here is else one more variant with dictionary result

private func parse() {
    var dictionary: [Int: String] = [:]
    _ = inputString
        .components(separatedBy: "\n")
        .compactMap { $0.components(separatedBy: ",") }
        .compactMap { arr in
            arr
                .enumerated()
                .compactMap { index, element in
                    var str = dictionary[index] ?? ""
                    str += element
                    dictionary[index] = str
            }
    }
}

where dictionary.values() will be desired elements

Upvotes: 2

Jaydeep Vora
Jaydeep Vora

Reputation: 6213

Well if you want to create data from this raw data, you can do as like below

let names = ["A","B","C","D","E"]

let element2 = [17945,10091,10088,3907,10132]

let element3 = [2,12,13,48,11]

struct DataModel {
    var name : String
    var id1 : String
    var id2 : String
}

var allElements: [DataModel] = []

for i in zip(names, zip(element2, element3)) {
    let model = DataModel(name: i.0, id1: i.1.0.description, id2: i.1.1.description)
    allElements.append(model)
}

Upvotes: 2

Related Questions