---
source: crates/biome_json_parser/tests/spec_test.rs
expression: snapshot
---

## Input

```json
[-NaN]
```


## AST

```
JsonRoot {
    bom_token: missing (optional),
    value: JsonArrayValue {
        l_brack_token: L_BRACK@0..1 "[" [] [],
        elements: JsonArrayElementList [
            JsonBogusValue {
                items: [
                    ERROR_TOKEN@1..2 "-" [] [],
                    IDENT@2..5 "NaN" [] [],
                ],
            },
        ],
        r_brack_token: R_BRACK@5..6 "]" [] [],
    },
    eof_token: EOF@6..6 "" [] [],
}
```

## CST

```
0: JSON_ROOT@0..6
  0: (empty)
  1: JSON_ARRAY_VALUE@0..6
    0: L_BRACK@0..1 "[" [] []
    1: JSON_ARRAY_ELEMENT_LIST@1..5
      0: JSON_BOGUS_VALUE@1..5
        0: ERROR_TOKEN@1..2 "-" [] []
        1: IDENT@2..5 "NaN" [] []
    2: R_BRACK@5..6 "]" [] []
  2: EOF@6..6 "" [] []

```

## Diagnostics

```
number_-NaN.json:1:2 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × Minus must be followed by a digit
  
  > 1 │ [-NaN]
      │  ^
  
```