Indexing Operators

To retrieve the second character in a string:

{{ "Hello World!"[1] }}

To retrieve the first value in a list:

{{ [ 1, 2, 3 ][0] }}

To retrieve a map item at a specified index name:

{{ { first: 1, second: 2, third: 3 }["third"] }}

To retrieve the username element returned from the API using an xpath:

{{ web.xml("http://wiki.opengarden.org/@api/deki/users")["user/username"] }}