QGIS/resources/function_help/json/map_concat

{
  "name": "map_concat",
  "type": "function",
  "groups": ["Maps"],
  "description": "Returns a map containing all the entries of the given maps. If two maps contain the same key, the value of the second map is taken.",
  "variableLenArguments": true,
  "arguments": [
    {"arg":"map1", "syntaxOnly": true},
    {"arg":"map2", "syntaxOnly": true},
    {"arg":"map", "descOnly": true, "description":"a map"}],
  "examples": [ { "expression":"map_concat(map('1','one', '2','overridden'),map('2','two', '3','three'))", "returns":"{ '1': 'one, '2': 'two', '3': 'three' }"}
  ]
}