Function joinWith

joinWith(
    texts?: string | string[] | null,
    separator?: string | null,
    filter?: (text?: string) => boolean,
): string | undefined
Returns the joined string with the given texts and delimiter
Parameters
- Optionaltexts: string | string[] | null
  The source string or strings to inspect
- Optionalseparator: string | null
  The delimiter string to append between each of the given texts
- Optionalfilter: (text?: string) => boolean
  The filter to check each of the given texts should be included
Returns string | undefined
the joined string with the given texts and delimiter
Example
```
joinWith('foobar');    // 'foobar'
joinWith(['foo', 'bar'], undefined);    // 'foobar'
joinWith(['foo', 'bar', 'world'], undefined, (text => text !== 'world'));    // 'foobar'
```