Function toStringTrueFalse

toStringTrueFalse(value?): string | undefined
Returns a string value of 'true'/'false' from the boolean value
Parameters
- Optionalvalue: boolean
  the boolean value to check
Returns string | undefined
the string value of 'true'/'false' from the boolean value
Example
```
toStringTrueFalse(true);    // 'true'
```