---
source: crates/biome_js_analyze/tests/spec_tests.rs
expression: invalid.jsonc
---
# Input
```cjs
function NaN() {}
```

# Diagnostics
```
invalid.jsonc:1:10 lint/suspicious/noShadowRestrictedNames ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ! Do not shadow the global "NaN" property.
  
  > 1 │ function NaN() {}
      │          ^^^
  
  i Consider renaming this variable. It's easy to confuse the origin of variables when they're named after a known global.
  

```

# Input
```cjs
function undefined() {}
```

# Diagnostics
```
invalid.jsonc:1:10 lint/suspicious/noShadowRestrictedNames ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ! Do not shadow the global "undefined" property.
  
  > 1 │ function undefined() {}
      │          ^^^^^^^^^
  
  i Consider renaming this variable. It's easy to confuse the origin of variables when they're named after a known global.
  

```

# Input
```cjs
function Infinity() {}
```

# Diagnostics
```
invalid.jsonc:1:10 lint/suspicious/noShadowRestrictedNames ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ! Do not shadow the global "Infinity" property.
  
  > 1 │ function Infinity() {}
      │          ^^^^^^^^
  
  i Consider renaming this variable. It's easy to confuse the origin of variables when they're named after a known global.
  

```

# Input
```cjs
function Array() {}
```

# Diagnostics
```
invalid.jsonc:1:10 lint/suspicious/noShadowRestrictedNames ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ! Do not shadow the global "Array" property.
  
  > 1 │ function Array() {}
      │          ^^^^^
  
  i Consider renaming this variable. It's easy to confuse the origin of variables when they're named after a known global.
  

```

# Input
```cjs
function test(JSON) { console.log(JSON); }
```

# Diagnostics
```
invalid.jsonc:1:15 lint/suspicious/noShadowRestrictedNames ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ! Do not shadow the global "JSON" property.
  
  > 1 │ function test(JSON) { console.log(JSON); }
      │               ^^^^
  
  i Consider renaming this variable. It's easy to confuse the origin of variables when they're named after a known global.
  

```

# Input
```cjs
let Set;
```

# Diagnostics
```
invalid.jsonc:1:5 lint/suspicious/noShadowRestrictedNames ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ! Do not shadow the global "Set" property.
  
  > 1 │ let Set;
      │     ^^^
  
  i Consider renaming this variable. It's easy to confuse the origin of variables when they're named after a known global.
  

```

# Input
```cjs
try {} catch (Object) {}
```

# Diagnostics
```
invalid.jsonc:1:15 lint/suspicious/noShadowRestrictedNames ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ! Do not shadow the global "Object" property.
  
  > 1 │ try {} catch (Object) {}
      │               ^^^^^^
  
  i Consider renaming this variable. It's easy to confuse the origin of variables when they're named after a known global.
  

```