Optional("1,000")stderr:
<stdin>:11:7: warning: expression implicitly coerced from 'String?' to 'Any' print(numberFormatter.string(from: .init(value: 1000))) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ <stdin>:11:23: note: provide a default value to avoid this warning print(numberFormatter.string(from: .init(value: 1000))) ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ?? <#default value#> <stdin>:11:23: note: force-unwrap the value to avoid this warning print(numberFormatter.string(from: .init(value: 1000))) ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ! <stdin>:11:23: note: explicitly cast to 'Any' with 'as Any' to silence this warning print(numberFormatter.string(from: .init(value: 1000))) ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ as Any