QGIS/resources/function_help/json/array_foreach

{
  "name": "array_foreach",
  "type": "function",
  "groups": ["Arrays"],
  "description": "Returns an array with the given expression evaluated on each item.",
  "arguments": [
    {"arg":"array","description":"an array"},
    {"arg":"expression","description":"an expression to evaluate on each item. The variable `@element` will be replaced by the current value."}
  ],
  "examples": [
    { "expression": "array_foreach(array('a','b','c'),upper(@element))", "returns":"[ 'A', 'B', 'C' ]"},
    { "expression": "array_foreach(array(1,2,3),@element + 10)", "returns":"[ 11, 12, 13 ]"}
  ]
}