How to access differently nested string array swift 5

Question

and good job , well basically i have array like this :

let imageArray = [ ["image0"] , ["image11","image12"] , ["image2"], ["image31","image32","image33"] ]

In this point i want to put for example first item of each nested array into a new array like this :

var newArray = ["image0","image11","image2","image31"]

And also i want to have a condition for example if "image31" clicked we have a new page that show ervery images of that first array show us, like ["image31", "image32", "image33"]

So could you tell any idea how can implement like this?

Shehata Gamal · Accepted Answer · 2021-05-09 13:27:39Z

1

You can try

let res = imageArray.map { $0.first! }

When clicked use the index to access other elements , say from above index 3 image is clicked then use

let resImages = imageArray[clickedIndex]

Edit:

let arr = ["images/product/2021-05-02T09-47-17.699Z-download (2).jpg"]

let res = arr.map { $0[$0.range(of: "images/product/")!.upperBound...] }
        
print(res)

edited May 9, 2021 at 13:27

answered May 9, 2021 at 7:41

Shehata Gamal

101k8 gold badges75 silver badges95 bronze badges

Sign up to request clarification or add additional context in comments.

9 Comments

Ali kazemi Over a year ago

Thanks for attention, i updated my question , in second part , i want this if user clicked each item of newArray then in new page show each image array that related to clicked image

Shehata Gamal Over a year ago

set imageView tag = index of the image you set it to from above res then use that tag of the clicked imageView to get resImages from above

Ali kazemi Over a year ago

Ok i will try that , again thanks and good luck

Ali kazemi Over a year ago

I have a problem with that, when I use your solution , I mean first line , and my string is "images/product/2021-05-02T09-47-17.699Z-download (2).jpg" its just return to me first character of this string not all of the string, what do I do?

Shehata Gamal Over a year ago

Do u need 2021-05-02T09-47-17.699Z-download (2).jpg ?

|

Paulw11 · Accepted Answer · 2021-05-09 08:29:56Z

1

Using simple data structures (like arrays) to model complex data is rarely the best approach.

In this case I would create a struct ImageList and then create an array of this struct

struct ImageList {
   let images: [String]
   var firstImage: String? {
       return self.images.first
   }
}

You can use map to create the array from your current source, if required

   imageListArray = imageArray.map { ImageList(images:$0) }

Now you can have an index that is associated with an ImageList struct - imageListArray[i].firstImage! is the value you want for your list and iageListArray[i].images is the array you want for your second requirement.

answered May 9, 2021 at 8:29

Paulw11

116k15 gold badges175 silver badges213 bronze badges

2 Comments

Ali kazemi Over a year ago

hi brother could you say what is imageListArray? because its unknown for me

Paulw11 Over a year ago

It would be var imageListArray[ImageList] - you haven't said what you are doing with the array, but this would be the array for your tableview or lost view or whatever.

Collectives™ on Stack Overflow

How to access differently nested string array swift 5

2 Answers 2

9 Comments

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

9 Comments

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related