Brewski - 9 months ago 40

iOS Question

I'm trying to remove empty trailing decimals and instead of using an extension for float I want to consider using droplast() if the result has any trailing zeros:

`if result.contains(".0") {`

result.characters.dropLast()

}

if result.contains(".00") {

result.characters.dropLast(2)

}

This does not seem to work and I get the warning:

Result of call to 'droplast()' is unused

Answer

Alternative solution using regular expression, the number of decimal places doesn't matter:

```
var result = "1.00"
result = result.replacingOccurrences(of: "\\.0+$",
with: "",
options: .regularExpression,
range: result.startIndex..<result.endIndex)
```

Considering the entire string you can even omit the `range`

parameter:

```
result = result.replacingOccurrences(of: "\\.0+$",
with: "",
options: .regularExpression)
```

Source (Stackoverflow)