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

# Type Alias ConstrainBooleanOrDOMString

ConstrainBooleanOrDOMString:  
    | boolean  
    | string  
    | [ConstrainBooleanOrDOMStringParameters](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.ConstrainBooleanOrDOMStringParameters/)