---
source: crates/biome_js_analyze/tests/spec_tests.rs
expression: invalid.ts
---
# Input
```ts
enum InvalidLiterals {
A = {},
B = [],
C = true,
D = 1n,
}
enum InvalidTemplateLiteral {
A = `foo ${0}`,
}
enum InvalidConstructor {
A = new Set(),
}
enum InvalidExpression {
A = delete 2,
B = -a,
C = void 2,
D = !0,
}
const variable = 'Test';
enum InvalidVariable {
A = 'TestStr',
V = variable,
}
enum Valid {
A,
}
enum InvalidEnumMember {
A = Valid.A,
}
const x = 1;
enum Foo {
A = x << 0,
B = x >> 0,
C = x >>> 0,
D = x | 0,
E = x & 0,
F = x ^ 0,
G = ~x,
}
enum InvalidRef {
A = A,
B = InvalidRef.B,
C = InvalidRef["C"],
D = E,
E = InvalidRef.F,
F = InvalidRef["G"],
G
}
export {}
```
# Diagnostics
```
invalid.ts:2:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
1 │ enum InvalidLiterals {
> 2 │ A = {},
│ ^^
3 │ B = [],
4 │ C = true,
```
```
invalid.ts:3:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
1 │ enum InvalidLiterals {
2 │ A = {},
> 3 │ B = [],
│ ^^
4 │ C = true,
5 │ D = 1n,
```
```
invalid.ts:4:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
2 │ A = {},
3 │ B = [],
> 4 │ C = true,
│ ^^^^
5 │ D = 1n,
6 │ }
```
```
invalid.ts:5:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
3 │ B = [],
4 │ C = true,
> 5 │ D = 1n,
│ ^^
6 │ }
7 │
```
```
invalid.ts:9:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
8 │ enum InvalidTemplateLiteral {
> 9 │ A = `foo ${0}`,
│ ^^^^^^^^^^
10 │ }
11 │
```
```
invalid.ts:13:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
12 │ enum InvalidConstructor {
> 13 │ A = new Set(),
│ ^^^^^^^^^
14 │ }
15 │
```
```
invalid.ts:17:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
16 │ enum InvalidExpression {
> 17 │ A = delete 2,
│ ^^^^^^^^
18 │ B = -a,
19 │ C = void 2,
```
```
invalid.ts:18:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
16 │ enum InvalidExpression {
17 │ A = delete 2,
> 18 │ B = -a,
│ ^^
19 │ C = void 2,
20 │ D = !0,
```
```
invalid.ts:19:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
17 │ A = delete 2,
18 │ B = -a,
> 19 │ C = void 2,
│ ^^^^^^
20 │ D = !0,
21 │ }
```
```
invalid.ts:20:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
18 │ B = -a,
19 │ C = void 2,
> 20 │ D = !0,
│ ^^
21 │ }
22 │
```
```
invalid.ts:26:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
24 │ enum InvalidVariable {
25 │ A = 'TestStr',
> 26 │ V = variable,
│ ^^^^^^^^
27 │ }
28 │
```
```
invalid.ts:33:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
31 │ }
32 │ enum InvalidEnumMember {
> 33 │ A = Valid.A,
│ ^^^^^^^
34 │ }
35 │
```
```
invalid.ts:38:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
36 │ const x = 1;
37 │ enum Foo {
> 38 │ A = x << 0,
│ ^^^^^^
39 │ B = x >> 0,
40 │ C = x >>> 0,
```
```
invalid.ts:39:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
37 │ enum Foo {
38 │ A = x << 0,
> 39 │ B = x >> 0,
│ ^^^^^^
40 │ C = x >>> 0,
41 │ D = x | 0,
```
```
invalid.ts:40:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
38 │ A = x << 0,
39 │ B = x >> 0,
> 40 │ C = x >>> 0,
│ ^^^^^^^
41 │ D = x | 0,
42 │ E = x & 0,
```
```
invalid.ts:41:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
39 │ B = x >> 0,
40 │ C = x >>> 0,
> 41 │ D = x | 0,
│ ^^^^^
42 │ E = x & 0,
43 │ F = x ^ 0,
```
```
invalid.ts:42:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
40 │ C = x >>> 0,
41 │ D = x | 0,
> 42 │ E = x & 0,
│ ^^^^^
43 │ F = x ^ 0,
44 │ G = ~x,
```
```
invalid.ts:43:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
41 │ D = x | 0,
42 │ E = x & 0,
> 43 │ F = x ^ 0,
│ ^^^^^
44 │ G = ~x,
45 │ }
```
```
invalid.ts:44:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
42 │ E = x & 0,
43 │ F = x ^ 0,
> 44 │ G = ~x,
│ ^^
45 │ }
46 │
```
```
invalid.ts:48:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
47 │ enum InvalidRef {
> 48 │ A = A,
│ ^
49 │ B = InvalidRef.B,
50 │ C = InvalidRef["C"],
```
```
invalid.ts:49:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
47 │ enum InvalidRef {
48 │ A = A,
> 49 │ B = InvalidRef.B,
│ ^^^^^^^^^^^^
50 │ C = InvalidRef["C"],
51 │ D = E,
```
```
invalid.ts:50:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
48 │ A = A,
49 │ B = InvalidRef.B,
> 50 │ C = InvalidRef["C"],
│ ^^^^^^^^^^^^^^^
51 │ D = E,
52 │ E = InvalidRef.F,
```
```
invalid.ts:51:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
49 │ B = InvalidRef.B,
50 │ C = InvalidRef["C"],
> 51 │ D = E,
│ ^
52 │ E = InvalidRef.F,
53 │ F = InvalidRef["G"],
```
```
invalid.ts:52:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
50 │ C = InvalidRef["C"],
51 │ D = E,
> 52 │ E = InvalidRef.F,
│ ^^^^^^^^^^^^
53 │ F = InvalidRef["G"],
54 │ G
```
```
invalid.ts:53:7 lint/style/useLiteralEnumMembers â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”â”
! The enum member should be initialized with a literal value such as a number or a string.
51 │ D = E,
52 │ E = InvalidRef.F,
> 53 │ F = InvalidRef["G"],
│ ^^^^^^^^^^^^^^^
54 │ G
55 │ }
```