The double bracket operator can be used on vertex sequences, to print the meta-data (vertex attributes) of the vertices in the sequence.

## Value

The double bracket operator returns another vertex sequence, with meta-data (attribute) printing turned on. See details below.

## Details

Technically, when used with vertex sequences, the double bracket operator does exactly the same as the single bracket operator, but the resulting vertex sequence is printed differently: all attributes of the vertices in the sequence are printed as well.

See `[.igraph.vs`

for more about indexing vertex sequences.

## See also

Other vertex and edge sequences:
`E()`

,
`V()`

,
`as_ids()`

,
`igraph-es-attributes`

,
`igraph-es-indexing2`

,
`igraph-es-indexing`

,
`igraph-vs-attributes`

,
`igraph-vs-indexing`

,
`print.igraph.es()`

,
`print.igraph.vs()`

Other vertex and edge sequence operations:
`c.igraph.es()`

,
`c.igraph.vs()`

,
`difference.igraph.es()`

,
`difference.igraph.vs()`

,
`igraph-es-indexing2`

,
`igraph-es-indexing`

,
`igraph-vs-indexing`

,
`intersection.igraph.es()`

,
`intersection.igraph.vs()`

,
`rev.igraph.es()`

,
`rev.igraph.vs()`

,
`union.igraph.es()`

,
`union.igraph.vs()`

,
`unique.igraph.es()`

,
`unique.igraph.vs()`

## Examples

```
g <- make_ring(10) %>%
set_vertex_attr("color", value = "red") %>%
set_vertex_attr("name", value = LETTERS[1:10])
V(g)
#> + 10/10 vertices, named, from 3e1dacb:
#> [1] A B C D E F G H I J
V(g)[[]]
#> + 10/10 vertices, named, from 3e1dacb:
#> color name
#> 1 red A
#> 2 red B
#> 3 red C
#> 4 red D
#> 5 red E
#> 6 red F
#> 7 red G
#> 8 red H
#> 9 red I
#> 10 red J
V(g)[1:5]
#> + 5/10 vertices, named, from 3e1dacb:
#> [1] A B C D E
V(g)[[1:5]]
#> + 5/10 vertices, named, from 3e1dacb:
#> color name
#> 1 red A
#> 2 red B
#> 3 red C
#> 4 red D
#> 5 red E
```