I was once involved in a mail conversation about this, where I thought I had some good argument for why dicts may be nice to have, as well as some good arguments against. I repeat them here: Why dicts might be great to have in Web Prolog A. They map naturally to JSON. This might be a great feature…

Prolog dictionaries

EricGT Split this topic September 2, 2019, 10:14pm 4

Splitting topics

Topic		Replies	Views
Json_dict/2 - Helpful for learning how to use JSON with SWI-Prolog dict Useful Code	0	513	September 15, 2021
A great library about dicts = dict_schema Nice to know	0	272	September 12, 2021
Syntax/semantics for partial dicts Request For Comments	28	1338	July 20, 2021
Reply_json_dict: avoid losing distinction between atoms and strings Help!	1	255	February 18, 2019
Ws_receive data given as string instead of json some of the time Help!	2	351	April 6, 2019