1 {

     2     "type": "Program",

     3     "body": [

     4         {

     5             "type": "ExpressionStatement",

     6             "expression": {

     7                 "type": "Literal",

     8                 "value": "use strict"

     9             }

    10         }

    11     ]

    12 }

    13 {

    14     "type": "Program",

    15     "body": [

    16         {

    17             "type": "FunctionDeclaration",

    18             "id": {

    19                 "type": "Identifier",

    20                 "name": "f"

    21             },

    22             "params": [],

    23             "defaults": [],

    24             "rest": null,

    25             "body": {

    26                 "type": "BlockStatement",

    27                 "body": [

    28                     {

    29                         "type": "ExpressionStatement",

    30                         "expression": {

    31                             "type": "Literal",

    32                             "value": "use strict"

    33                         }

    34                     }

    35                 ]

    36             },

    37             "generator": false,

    38             "expression": false

    39         }

    40     ]

    41 }