---
title: "ResizeObserverCallback | 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.

# Interface ResizeObserverCallback

-   ResizeObserverCallback(  
        entries: [ResizeObserverEntry](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.ResizeObserverEntry/)\[\],  
        observer: [ResizeObserver](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.ResizeObserver/),  
    ): void[](#resizeobservercallback)
    
    #### Parameters
    
    -   entries: [ResizeObserverEntry](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.ResizeObserverEntry/)\[\]
    -   observer: [ResizeObserver](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.ResizeObserver/)
    
    #### Returns void