QGIS/resources/function_help/json/array_intersect

{
  "name": "array_intersect",
  "type": "function",
  "groups": ["Arrays"],
  "description": "Returns true if at least one element of array1 exists in array2.",
  "arguments": [ {"arg":"array1","description":"an array"},
                 {"arg":"array2","description":"another array"}],
  "examples": [ { "expression":"array_intersect(array(1,2,3,4),array(4,0,2,5))", "returns":"true"}]
}