Maps

Maps is a design pattern. An associative array, map, symbol table, or dictionary is an abstract data type composed of a collection of (key, value) pairs, such that each possible key appears at most once in the collection.

• the Maps wikipedia page
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Languages with Maps include edn, json, lua

Example from JSON:

{"name": "Mary"}

Example from Lua:

https://www.lua.org/pil/2.5.html

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