parse-js 0.10.3

JavaScript parsing library
Documentation 
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{
  "$t": "ArrowFunctionExpr",
  "parenthesised": false,
  "async": false,
  "signature": {
    "$t": "FunctionSignature",
    "parameters": [
      {
        "$t": "ParamDecl",
        "rest": false,
        "pattern": {
          "$t": "IdentifierPattern",
          "name": "a"
        },
        "default_value": null
      },
      {
        "$t": "ParamDecl",
        "rest": false,
        "pattern": {
          "$t": "IdentifierPattern",
          "name": "b"
        },
        "default_value": null
      },
      {
        "$t": "ParamDecl",
        "rest": false,
        "pattern": {
          "$t": "IdentifierPattern",
          "name": "c"
        },
        "default_value": null
      }
    ]
  },
  "body": {
    "$t": "ArrowFunctionExpr",
    "parenthesised": false,
    "async": false,
    "signature": {
      "$t": "FunctionSignature",
      "parameters": [
        {
          "$t": "ParamDecl",
          "rest": false,
          "pattern": {
            "$t": "IdentifierPattern",
            "name": "x"
          },
          "default_value": null
        }
      ]
    },
    "body": {
      "$t": "ConditionalExpr",
      "parenthesised": false,
      "test": {
        "$t": "LiteralNumberExpr",
        "value": 1.0
      },
      "consequent": {
        "$t": "ConditionalExpr",
        "parenthesised": false,
        "test": {
          "$t": "CallExpr",
          "optional_chaining": false,
          "parenthesised": false,
          "callee": {
            "$t": "ArrowFunctionExpr",
            "parenthesised": true,
            "async": false,
            "signature": {
              "$t": "FunctionSignature",
              "parameters": [
                {
                  "$t": "ParamDecl",
                  "rest": false,
                  "pattern": {
                    "$t": "IdentifierPattern",
                    "name": "y"
                  },
                  "default_value": null
                }
              ]
            },
            "body": {
              "$t": "LiteralNumberExpr",
              "value": 2.0
            }
          },
          "arguments": []
        },
        "consequent": {
          "$t": "LiteralNumberExpr",
          "value": 3.0
        },
        "alternate": {
          "$t": "LiteralNumberExpr",
          "value": 4.0
        }
      },
      "alternate": {
        "$t": "LiteralNumberExpr",
        "value": 5.0
      }
    }
  }
}