{ "type": "Script", "span": { "start": 23, "end": 54, "ctxt": 0 }, "body": [ { "type": "VariableDeclaration", "span": { "start": 23, "end": 54, "ctxt": 0 }, "kind": "var", "declare": false, "declarations": [ { "type": "VariableDeclarator", "span": { "start": 27, "end": 53, "ctxt": 0 }, "id": { "type": "ArrayPattern", "span": { "start": 27, "end": 33, "ctxt": 0 }, "elements": [ { "type": "Identifier", "span": { "start": 28, "end": 29, "ctxt": 0 }, "value": "a", "optional": false, "typeAnnotation": null }, { "type": "Identifier", "span": { "start": 31, "end": 32, "ctxt": 0 }, "value": "b", "optional": false, "typeAnnotation": null } ], "optional": false, "typeAnnotation": null }, "init": { "type": "ArrayExpression", "span": { "start": 36, "end": 53, "ctxt": 0 }, "elements": [ { "spread": null, "expression": { "type": "Identifier", "span": { "start": 37, "end": 46, "ctxt": 0 }, "value": "undefined", "optional": false } }, { "spread": null, "expression": { "type": "NullLiteral", "span": { "start": 48, "end": 52, "ctxt": 0 } } } ] }, "definite": false } ] } ], "interpreter": null }