optEmptyString ()

optEmptyString<T>(x): OptSafe<T>
For empty string ('') returns None, otherwise acts same as opt.
Type Parameters
- T
Parameters
- x: undefined | null | "" | T
Returns OptSafe<T>
Example
```
optEmptyString(undefined) // None
optEmptyString('') // None
optEmptyString('a') // Some('a')
```
- Defined in Opt.ts:2238