---
source: crates/biome_js_analyze/tests/spec_tests.rs
expression: invalid.ts
---
# Input
```ts
class C {
	static {
		var a;
		var a;
	}
}

function f<T, T>() {}

```

# Diagnostics
```
invalid.ts:4:7 lint/suspicious/noRedeclare ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ! Shouldn't redeclare 'a'. Consider to delete it or rename it.
  
    2 │ 	static {
    3 │ 		var a;
  > 4 │ 		var a;
      │ 		    ^
    5 │ 	}
    6 │ }
  
  i 'a' is defined here:
  
    1 │ class C {
    2 │ 	static {
  > 3 │ 		var a;
      │ 		    ^
    4 │ 		var a;
    5 │ 	}
  

```

```
invalid.ts:8:15 lint/suspicious/noRedeclare ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ! Shouldn't redeclare 'T'. Consider to delete it or rename it.
  
    6 │ }
    7 │ 
  > 8 │ function f<T, T>() {}
      │               ^
    9 │ 
  
  i 'T' is defined here:
  
    6 │ }
    7 │ 
  > 8 │ function f<T, T>() {}
      │            ^
    9 │ 
  

```