Function ifUndefinedThen

ifUndefinedThen<T>(callback: () => void, value?: T): value is T
Executes a callback if the value is undefined
Type Parameters
- T
  The type of the value
Parameters
- callback: () => void
  The callback function to execute
- Optionalvalue: T
  The value to check (optional)
Returns value is T
False if the value is undefined and callback was executed, true otherwise
- Defined in foundation/misc/MiscUtil.ts:302