Convert string values to upper case, lower case, first letter first world upper case , first letter all words upper case
| name | income |
|---|---|
| John wick | 50,000 |
| Marry poppins | 60,000 |
| Peter pan | 100,000 |
| Donald duck | 80,000 |
->pipe(new StringCase(array(
"all-cap" => "name",
// "upper" => "name, address",
// "lower" => "name, address",
// "first-cap" => "name, address",
// "all-cap" => "name, address"
)))
| name | income |
|---|---|
| John Wick | 50,000 |
| Marry Poppins | 60,000 |
| Peter Pan | 100,000 |
| Donald Duck | 80,000 |