---
title: "CollatorExpressionSpecification | 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.

# Type Alias CollatorExpressionSpecification

CollatorExpressionSpecification: \[  
    "collator",  
    {  
        "case-sensitive"?: boolean  
        | [ExpressionSpecification](https://docs.maptiler.com/sdk-js/api-reference/types/ExpressionSpecification/);  
        "diacritic-sensitive"?: boolean | [ExpressionSpecification](https://docs.maptiler.com/sdk-js/api-reference/types/ExpressionSpecification/);  
        locale?: string | [ExpressionSpecification](https://docs.maptiler.com/sdk-js/api-reference/types/ExpressionSpecification/);  
    },  
\]