1 [

     2   {

     3     "endPosition": "10",

     4     "kind": "IDENTIFIER",

     5     "name": "undefined",

     6     "startPosition": "1"

     7   },

     8   {

     9     "endPosition": "14",

    10     "kind": "IDENTIFIER",

    11     "name": "NaN",

    12     "startPosition": "11"

    13   },

    14   {

    15     "endPosition": "16",

    16     "kind": "IDENTIFIER",

    17     "name": "a",

    18     "startPosition": "15"

    19   },

    20   {

    21     "endPosition": "20",

    22     "kind": "IDENTIFIER",

    23     "name": "a23",

    24     "startPosition": "17"

    25   },

    26   {

    27     "endPosition": "29",

    28     "kind": "IDENTIFIER",

    29     "name": "var_name",

    30     "startPosition": "21"

    31   },

    32   {

    33     "endPosition": "41",

    34     "kind": "IDENTIFIER",

    35     "name": "_underscore",

    36     "startPosition": "30"

    37   },

    38   {

    39     "endPosition": "49",

    40     "kind": "IDENTIFIER",

    41     "name": "$dollar",

    42     "startPosition": "42"

    43   }

    44 ]