Function add

add<S extends AnyNode, T extends AnyNode>(
    this: Cheerio<T>,
    other: string | S | Cheerio<S> | S[],
    context?: string | Cheerio<S>,
): Cheerio<S | T>
Add elements to the set of matched elements.
Type Parameters
- S extends AnyNode
- T extends AnyNode
Parameters
- this: Cheerio<T>
- other: string | S | Cheerio<S> | S[]
  Elements to add.
- Optionalcontext: string | Cheerio<S>
  Optionally the context of the new selection.
Returns Cheerio<S | T>
The combined set.
Example
```
$('.apple').add('.orange').length;
//=> 2
```
See
https://api.jquery.com/add/
- Defined in node_modules/cheerio/dist/esm/api/traversing.d.ts:639