---
jsApi: true
title: "[F] $indexer"

---
```ts
$indexer(
   context, 
   target, 
   key, 
   value): void
```

## Parameters

| Parameter | Type |
| :------ | :------ |
| `context` | [`DecoratorContext`](../interfaces/DecoratorContext.md) |
| `target` | [`Type`](../type-aliases/Type.md) |
| `key` | [`Scalar`](../interfaces/Scalar.md) |
| `value` | [`Type`](../type-aliases/Type.md) |

## Returns

`void`
