---
source: crates/biome_js_analyze/tests/spec_tests.rs
expression: validVariables.tsx
---
# Input
```tsx
/* should not generate diagnostics */

var a = 1;
let b = 1;
const c = 1;
console.log(a, b, c);

// being used inside JSX
let value;
function Button() {}
console.log(<Button att={value}/>);

```