1 [
   2   {
   3     "endPosition": "15",
   4     "kind": "VARIABLE",
   5     "binding": {
   6       "endPosition": "6",
   7       "kind": "IDENTIFIER",
   8       "name": "f",
   9       "startPosition": "5"
  10     },
  11     "startPosition": "1",
  12     "initializer": {
  13       "endPosition": "12",
  14       "arrow": "true",
  15       "kind": "FUNCTION_EXPRESSION",
  16       "name": "null",
  17       "body": {
  18         "leftOperand": {
  19           "endPosition": "13",
  20           "kind": "IDENTIFIER",
  21           "name": "x",
  22           "startPosition": "12"
  23         },
  24         "endPosition": "15",
  25         "kind": "MULTIPLY",
  26         "rightOperand": {
  27           "endPosition": "15",
  28           "kind": "NUMBER_LITERAL",
  29           "value": "2",
  30           "startPosition": "14"
  31         },
  32         "startPosition": "12"
  33       },
  34       "strict": "false",
  35       "startPosition": "12",
  36       "parameters": [
  37         {
  38           "endPosition": "10",
  39           "kind": "IDENTIFIER",
  40           "name": "x",
  41           "startPosition": "9"
  42         }
  43       ]
  44     }
  45   },
  46   {
  47     "expression": {
  48       "endPosition": "35",
  49       "kind": "FUNCTION_INVOCATION",
  50       "functionSelect": {
  51         "identifier": "map",
  52         "expression": {
  53           "endPosition": "19",
  54           "kind": "ARRAY_LITERAL",
  55           "elements": [],
  56           "startPosition": "17"
  57         },
  58         "endPosition": "23",
  59         "kind": "MEMBER_SELECT",
  60         "startPosition": "17"
  61       },
  62       "arguments": [
  63         {
  64           "endPosition": "29",
  65           "arrow": "true",
  66           "kind": "FUNCTION_EXPRESSION",
  67           "name": "null",
  68           "body": {
  69             "leftOperand": {
  70               "endPosition": "30",
  71               "kind": "IDENTIFIER",
  72               "name": "v",
  73               "startPosition": "29"
  74             },
  75             "endPosition": "34",
  76             "kind": "PLUS",
  77             "rightOperand": {
  78               "endPosition": "34",
  79               "kind": "NUMBER_LITERAL",
  80               "value": "1",
  81               "startPosition": "33"
  82             },
  83             "startPosition": "29"
  84           },
  85           "strict": "false",
  86           "startPosition": "29",
  87           "parameters": [
  88             {
  89               "endPosition": "25",
  90               "kind": "IDENTIFIER",
  91               "name": "v",
  92               "startPosition": "24"
  93             }
  94           ]
  95         }
  96       ],
  97       "startPosition": "17"
  98     },
  99     "endPosition": "35",
 100     "kind": "EXPRESSION_STATEMENT",
 101     "startPosition": "17"
 102   }
 103 ]