---
source: crates/biome_js_analyze/tests/spec_tests.rs
expression: invalid.ts
---
# Input
```ts
/**
 * Doc
 */
const enum /* enum */ Port {
	In,
	Out,
}

export /* const */ const /* enum */ enum Status {
	Open,
	Close,
}

export enum Direction {
	Prev,
	Next,
}
```

# Diagnostics
```
invalid.ts:4:1 lint/suspicious/noConstEnum  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ! The enum declaration should not be const
  
    2 │  * Doc
    3 │  */
  > 4 │ const enum /* enum */ Port {
      │ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  > 5 │ 	In,
  > 6 │ 	Out,
  > 7 │ }
      │ ^
    8 │ 
    9 │ export /* const */ const /* enum */ enum Status {
  
  i Const enums are not supported by bundlers and are incompatible with the 'isolatedModules' mode. Their use can lead to import inexistent values.
  
  i See TypeScript Docs for more details.
  
  i Safe fix: Turn the const enum into a regular enum.
  
    4 │ const·enum·/*·enum·*/·Port·{
      │ ------                      

```

```
invalid.ts:9:20 lint/suspicious/noConstEnum  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ! The enum declaration should not be const
  
     7 │ }
     8 │ 
   > 9 │ export /* const */ const /* enum */ enum Status {
       │                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  > 10 │ 	Open,
  > 11 │ 	Close,
  > 12 │ }
       │ ^
    13 │ 
    14 │ export enum Direction {
  
  i Const enums are not supported by bundlers and are incompatible with the 'isolatedModules' mode. Their use can lead to import inexistent values.
  
  i See TypeScript Docs for more details.
  
  i Safe fix: Turn the const enum into a regular enum.
  
    9 │ export·/*·const·*/·const·/*·enum·*/·enum·Status·{
      │                    ------                        

```