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title: "Emitter"
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## Methods

### addListener()

> **addListener**(`eventName`, `listener`): `this`

#### Parameters

• **eventName**: `string` \| `symbol`

• **listener**: `AnyFunction`

#### Returns

`this`

#### Source

[src/core/contracts/emitter.ts:6](https://github.com/sern-handler/handler/blob/a19edaf8838dcf088d3947f4a6aa6213d8f5bb9e/src/core/contracts/emitter.ts#L6)

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### emit()

> **emit**(`eventName`, ...`payload`): `boolean`

#### Parameters

• **eventName**: `string` \| `symbol`

• ...**payload**: `any`[]

#### Returns

`boolean`

#### Source

[src/core/contracts/emitter.ts:8](https://github.com/sern-handler/handler/blob/a19edaf8838dcf088d3947f4a6aa6213d8f5bb9e/src/core/contracts/emitter.ts#L8)

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### removeListener()

> **removeListener**(`eventName`, `listener`): `this`

#### Parameters

• **eventName**: `string` \| `symbol`

• **listener**: `AnyFunction`

#### Returns

`this`

#### Source

[src/core/contracts/emitter.ts:7](https://github.com/sern-handler/handler/blob/a19edaf8838dcf088d3947f4a6aa6213d8f5bb9e/src/core/contracts/emitter.ts#L7)