---
title: "drawDebug | 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 drawDebug

-   drawDebug(  
        painter: [Painter](https://docs.maptiler.com/sdk-js/api-reference/classes/Painter/),  
        tileManager: [TileManager](https://docs.maptiler.com/sdk-js/api-reference/classes/Externals.TileManager/),  
        coords: [OverscaledTileID](https://docs.maptiler.com/sdk-js/api-reference/classes/OverscaledTileID/)\[\],  
    ): void[](#drawdebug)
    
    #### Parameters
    
    -   painter: [Painter](https://docs.maptiler.com/sdk-js/api-reference/classes/Painter/)
    -   tileManager: [TileManager](https://docs.maptiler.com/sdk-js/api-reference/classes/Externals.TileManager/)
    -   coords: [OverscaledTileID](https://docs.maptiler.com/sdk-js/api-reference/classes/OverscaledTileID/)\[\]
    
    #### Returns void