---
title: "addLayerWhenReady | Weather SDK | JavaScript maps SDK"
description: "Documentation for Weather JS"
---

# Function addLayerWhenReady

-   addLayerWhenReady(map: Map, layer: [TileLayer](https://docs.maptiler.com/sdk-js/modules/weather/api-reference/classes/TileLayer/), beforeId?: string): void[](#addlayerwhenready)
    
    #### Parameters
    
    -   map: Map
    -   layer: [TileLayer](https://docs.maptiler.com/sdk-js/modules/weather/api-reference/classes/TileLayer/)
    -   `Optional`beforeId: string
    
    #### Returns void