---
source: crates/biome_js_analyze/tests/spec_tests.rs
expression: invalid.js
---
# Input
```jsx
switch (foo) {
	default:
		break;
	case 0:
		break;
}

switch (foo) {
	case 0:
		break;
	default:
		break;
	case 1:
		break;
}

switch (foo) {
	default:
		f();
	case 0:
		break;
}

switch (foo) {
	case 0:
		break;
	default:
	case 1:
		break;
}
```

# Diagnostics
```
invalid.js:2:2 lint/suspicious/useDefaultSwitchClauseLast ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ! The default clause should be the last switch clause.
  
    1 │ switch (foo) {
  > 2 │ 	default:
      │ 	^^^^^^^^
  > 3 │ 		break;
      │ 		^^^^^^
    4 │ 	case 0:
    5 │ 		break;
  
  i The following case clause is here:
  
    2 │ 	default:
    3 │ 		break;
  > 4 │ 	case 0:
      │ 	^^^^^^^
  > 5 │ 		break;
      │ 		^^^^^^
    6 │ }
    7 │ 
  
  i Regardless its position, the default clause is always executed when there is no match. To avoid confusion, the default clause should be the last switch clause.
  

```

```
invalid.js:11:2 lint/suspicious/useDefaultSwitchClauseLast ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ! The default clause should be the last switch clause.
  
     9 │ 	case 0:
    10 │ 		break;
  > 11 │ 	default:
       │ 	^^^^^^^^
  > 12 │ 		break;
       │ 		^^^^^^
    13 │ 	case 1:
    14 │ 		break;
  
  i The following case clause is here:
  
    11 │ 	default:
    12 │ 		break;
  > 13 │ 	case 1:
       │ 	^^^^^^^
  > 14 │ 		break;
       │ 		^^^^^^
    15 │ }
    16 │ 
  
  i Regardless its position, the default clause is always executed when there is no match. To avoid confusion, the default clause should be the last switch clause.
  

```

```
invalid.js:18:2 lint/suspicious/useDefaultSwitchClauseLast ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ! The default clause should be the last switch clause.
  
    17 │ switch (foo) {
  > 18 │ 	default:
       │ 	^^^^^^^^
  > 19 │ 		f();
       │ 		^^^^
    20 │ 	case 0:
    21 │ 		break;
  
  i The following case clause is here:
  
    18 │ 	default:
    19 │ 		f();
  > 20 │ 	case 0:
       │ 	^^^^^^^
  > 21 │ 		break;
       │ 		^^^^^^
    22 │ }
    23 │ 
  
  i Regardless its position, the default clause is always executed when there is no match. To avoid confusion, the default clause should be the last switch clause.
  

```

```
invalid.js:27:2 lint/suspicious/useDefaultSwitchClauseLast ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ! The default clause should be the last switch clause.
  
    25 │ 	case 0:
    26 │ 		break;
  > 27 │ 	default:
       │ 	^^^^^^^^
    28 │ 	case 1:
    29 │ 		break;
  
  i The following case clause is here:
  
    26 │ 		break;
    27 │ 	default:
  > 28 │ 	case 1:
       │ 	^^^^^^^
  > 29 │ 		break;
       │ 		^^^^^^
    30 │ }
  
  i Regardless its position, the default clause is always executed when there is no match. To avoid confusion, the default clause should be the last switch clause.
  

```