How to remove whitespaces in strings in Swift?

Question

This works ``` let replaced = String(map(aString.generate()) { $0 == " " ? "-" : $0 }) ``` and this doesn't ``` let replaced = String(map(aString.generate()) { $0 == " " ? "" : $0 }) ``` Why?

Accepted Answer

For Swift 5:

```
" spaces here ".replacingOccurrences(of: " ", with: "")
```

returns:

```
"spaceshere"
```

How to remove whitespaces in strings in Swift?

Solution

Problem

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