---
title: "setMaxListeners | JavaScript maps SDK"
description: "Documentation for MapTiler SDK"
---

> For AI agents: a documentation index is available at [/llms.txt](https://docs.maptiler.com/llms.txt). Markdown versions of all pages are available by appending .md to any URL.

# Function setMaxListeners

-   setMaxListeners(  
        n: number,  
        ...eventTargets: readonly (EventTarget | [EventEmitter](https://docs.maptiler.com/sdk-js/api-reference/classes/Externals.EventEmitter/)<any\>)\[\],  
    ): void[](#setmaxlisteners)
    
    ```typescript
    import { setMaxListeners, EventEmitter } from 'node:events';
    
    const target = new EventTarget();
    const emitter = new EventEmitter();
    
    setMaxListeners(5, target, emitter);
    ```
    
    #### Parameters
    
    -   n: number
        
        A non-negative number. The maximum number of listeners per `EventTarget` event.
        
    -   ...eventTargets: readonly (EventTarget | [EventEmitter](https://docs.maptiler.com/sdk-js/api-reference/classes/Externals.EventEmitter/)<any\>)\[\]
        
        Zero or more `EventTarget` or `EventEmitter` instances. If none are specified, `n` is set as the default max for all newly created `EventTarget` and `EventEmitter` objects. objects.
        
    
    #### Returns void
    
    #### Since[](#since)
    
    v15.4.0