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kotlinlang

Hi
```enum class Role(val letter: Char) {
    APPROVER('U'),
    ADMIN('D'),
    INQUIRER('R'),
    OPERATOR('O');
}```
we have create this enum for code readability and we don't have direct control over how server is returning constants for the user roles, so they have done it this way 'U' , R etc

apiRespose.role = "U"

Role.valueOf(apiResponse.role) will not work ,as it is expecting  'APPROVER' as input . How can i achieve same benefit of Role.valueOf( ) wrt ot the 'letter' attribute in the enum

you can make extension function that will do something like this
```Role.values().first { it.letter == 'U' }```

with this few cases it isn't faster, but if you have many then
```val rolesByLetter: Map&lt;Char, Role&gt; = Role.values().associateBy { it.letter }
rolesByLetter['U']
```
would save you from repeated linear scan