What string operations are supported?

[johnynek]

The quickstart only mentions appending to strings and comparing strings. It does not mention accessing the length of strings or indexing characters or substrings. Is that supported?

[LingDong-]

Hi @johnynek,

Thanks for pointing out the missing documentation. Yes these are supported. Just added to quickstart: 2a22036397c992003742c91f963e6f491a831b3f

To find out the length of a string:

(# s)

To get a character from a string:

(let s str "hello")
(let c int (get s 0)) ;; 'h'==104

To copy part of a string into a new string use (slice s i n) the same way as slice for arr:

(let s str "hello")
(slice s 1 3)  ;; "ell"