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

## Input

```json
[]
```


## AST

```
JsonRoot {
    bom_token: missing (optional),
    value: JsonArrayValue {
        l_brack_token: L_BRACK@0..2 "[" [] [Whitespace("\u{c}")],
        elements: JsonArrayElementList [],
        r_brack_token: R_BRACK@2..3 "]" [] [],
    },
    eof_token: EOF@3..3 "" [] [],
}
```

## CST

```
0: JSON_ROOT@0..3
  0: (empty)
  1: JSON_ARRAY_VALUE@0..3
    0: L_BRACK@0..2 "[" [] [Whitespace("\u{c}")]
    1: JSON_ARRAY_ELEMENT_LIST@2..2
    2: R_BRACK@2..3 "]" [] []
  2: EOF@3..3 "" [] []

```

## Diagnostics

```
structure_whitespace_formfeed.json:1:2 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × The JSON standard only allows tabs, whitespace, carriage return and line feed whitespace.
  
  > 1 │ [↡]
      │  
  
  i Use a regular whitespace character instead.
  
```