CODEWITHSUNDEEP
iosswiftstringflatmap
cmii
cmii

Reputation: 3636

How to replace all vowels in a String?

I tried with this code: 

let vowels: [Character] = ["a","e","i","o","u", "y"]

let replaced = String(myString.map {
     $0 == vowels.contains($0) ? "1" : "0"
 })

But I have the error: Binary operator '==' cannot be applied to operands of type 'Character' and 'Bool'

What is wrong?

Upvotes: 2

Views: 1420

Answers (5)

Abd
Abd

Reputation: 568

different way but it is still as you want

 let strs = "hello world"
    var str = String()
    let vowles = ["e","o"]
    //if you want the index also use  this (index,char) in strs.enumerated()
    //if the index is not important use this char in strs

    for (index,char) in strs.enumerated()
{


   var who = String(char)
    if vowles.contains(who){
        print(who)
        //replace or deleted by changing the value of who
         who = ""
        str = str + who
        print(str)

    }else{
        str = str + who

    }
}

Upvotes: -1

MAhipal Singh
MAhipal Singh

Reputation: 4827

replace all vowels in a String with asterisk symbol

let vowels: [Character] = ["a","e","i","o","u", "y"]
    var myString = "mahipal singh"
    let replaced = String(myString.map {
        vowels.contains($0) ? Character("*") : $0 // Replace * with your character you wanna to replace
    })
    print(replaced)

Upvotes: 1

Pranav Gupta
Pranav Gupta

Reputation: 811

let vowels: [Character] = ["a","e","i","o","u","y","A","E","I","O","U", "Y"]
var replaced = String()
for char in myString {
  if !vowels.contains(char){
    replaced = "\(replaced)\(char)"
  }
}

Upvotes: 0

Akshansh Thakur
Akshansh Thakur

Reputation: 5331

You can remove vowel from string like so:

string.remove(at: string.index(where: {vowels.contains($0)})!)

Upvotes: 0

Tj3n
Tj3n

Reputation: 9923

Just need to replace $0 == with return, you were comparing Character with Bool it makes no sense

let vowels: [Character] = ["a","e","i","o","u", "y"]

let replaced = String(myString.map {
     return vowels.contains($0) ? "1" : "0"
 })

Upvotes: 5

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