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

# Interface StyleSheetList

The **`StyleSheetList`** interface represents a list of CSSStyleSheet objects. An instance of this object can be returned by Document.styleSheets.

[MDN Reference](https://developer.mozilla.org/docs/Web/API/StyleSheetList)

interface StyleSheetList {  
    [length](#length): number;  
    ["\[iterator\]"](#iterator-1)(): [ArrayIterator](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.ArrayIterator/)<[CSSStyleSheet](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.CSSStyleSheet/)\>;  
    [item](#item-1)(index: number): [CSSStyleSheet](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.CSSStyleSheet/) | null;  
    \[index: number\]: [CSSStyleSheet](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.CSSStyleSheet/);  
}

#### Indexable

-   \[index: number\]: [CSSStyleSheet](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.CSSStyleSheet/)
    

##### Index

### Properties[](#properties)

[length](#length)

### Methods[](#methods)

[\[iterator\]](#iterator) [item](#item)

## Properties[](#properties-1)

### `Readonly`length[](#length)

length: number

The **`length`** read-only property of the StyleSheetList interface returns the number of CSSStyleSheet objects in the collection.

[MDN Reference](https://developer.mozilla.org/docs/Web/API/StyleSheetList/length)

## Methods[](#methods-1)

### \[iterator\][](#iterator)

-   "\[iterator\]"(): [ArrayIterator](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.ArrayIterator/)<[CSSStyleSheet](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.CSSStyleSheet/)\>[](#iterator-1)
    
    #### Returns [ArrayIterator](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.ArrayIterator/)<[CSSStyleSheet](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.CSSStyleSheet/)\>
    

### item[](#item)

-   item(index: number): [CSSStyleSheet](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.CSSStyleSheet/) | null[](#item-1)
    
    The **`item()`** method of the StyleSheetList interface returns a single CSSStyleSheet object.
    
    [MDN Reference](https://developer.mozilla.org/docs/Web/API/StyleSheetList/item)
    
    #### Parameters
    
    -   index: number
    
    #### Returns [CSSStyleSheet](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.CSSStyleSheet/) | null