---
title: "InterpolatedKeyFrame | 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 InterpolatedKeyFrame

InterpolatedKeyFrame: [Keyframe](https://docs.maptiler.com/sdk-js/api-reference/types/Keyframe/) & {  
    easing: [EasingFunctionName](https://docs.maptiler.com/sdk-js/api-reference/types/EasingFunctionName/);  
    id: string;  
    props: [Record](https://docs.maptiler.com/sdk-js/api-reference/types/Externals.Record/)<string, number\>;  
}

A keyframe in the animation sequence where null or undefined values are interpolated to fill in the gaps between keyframes.