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

## Input

```json
[-01]
```


## AST

```
JsonRoot {
    bom_token: missing (optional),
    value: JsonArrayValue {
        l_brack_token: L_BRACK@0..1 "[" [] [],
        elements: JsonArrayElementList [
            JsonBogusValue {
                items: [
                    ERROR_TOKEN@1..4 "-01" [] [],
                ],
            },
        ],
        r_brack_token: R_BRACK@4..5 "]" [] [],
    },
    eof_token: EOF@5..5 "" [] [],
}
```

## CST

```
0: JSON_ROOT@0..5
  0: (empty)
  1: JSON_ARRAY_VALUE@0..5
    0: L_BRACK@0..1 "[" [] []
    1: JSON_ARRAY_ELEMENT_LIST@1..4
      0: JSON_BOGUS_VALUE@1..4
        0: ERROR_TOKEN@1..4 "-01" [] []
    2: R_BRACK@4..5 "]" [] []
  2: EOF@5..5 "" [] []

```

## Diagnostics

```
number_-01.json:1:2 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × Expected an array, an object, or a literal but instead found '-01'.
  
  > 1 │ [-01]
      │  ^^^
  
  i Expected an array, an object, or a literal here.
  
  > 1 │ [-01]
      │  ^^^
  
number_-01.json:1:3 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × The JSON standard doesn't allow octal number notation (numbers starting with zero)
  
  > 1 │ [-01]
      │   ^
  
```