Function toUpper

toUpper<T extends string = string>(string?: T): Uppercase<T>
Converts string, as a whole, to upper case.
Type Parameters
- T extends string = string
Parameters
- Optionalstring: T
  The string to convert.
Returns Uppercase<T>
Returns the upper cased string.
- Defined in node_modules/@types/lodash/common/string.d.ts:558