Swift - Replace Character in String [duplicate]

Question

I have variable which contents the symbol or character I don't know how you say on this "\" in english... How to replace all \ with empty space in my variable ?

var content = theContent["content"] as String
self.contentLabel.text = content.stringByReplacingOccurrencesOfString(<#target: String#>, withString: <#String#>, options: <#NSStringCompareOptions#>, range: <#Range<String.Index>?#>)

How to fill this spaces or my sintax is wrong when I use content.string... and then in #target I use the same string ? Anyone who learned Swift so fast? :D

nicael · Accepted Answer · 2014-07-02 10:30:30Z

27

Use the following

self.contentLabel.text = content.stringByReplacingOccurrencesOfString("\\", withString: " ", options: NSStringCompareOptions.LiteralSearch, range: nil)

answered Jul 2, 2014 at 10:30

nicael

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Comments

Ashley Mills · Accepted Answer · 2015-03-27 13:53:14Z

14

If you want to write this in pure Swift, try:

self.contentLabel.text = Array(myString).reduce("") { $1 == "\\" ? $0 : "\($0)\($1)" }

This is a short hand way of writing:

Array(myString).reduce("", combine: { (inputString, character) -> String in
    if character == "\\" {
        return inputString
    } else {
        return "\(inputString)\(character)"
    }
})

This converts myString to an Array of Characters, then uses the reduce function to append them back together into a String, but substituting an empty string in place of backslashes

edited Mar 27, 2015 at 13:53

answered Jul 2, 2014 at 12:55

Ashley Mills

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2 Comments

Aggressor Over a year ago

What do you mean pure swift? This looks intense. Can you explain whats going on in this example?

Ashley Mills Over a year ago

By pure Swift, I mean that it doesn't use any Foundation classes (NSString, for example) - updated my answer for clarity

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