---
title: "Keyframe | 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 Keyframe

type Keyframe \= {  
    [delta](#delta): number;  
    [easing](#easing)?: [EasingFunctionName](https://docs.maptiler.com/sdk-js/api-reference/types/EasingFunctionName/);  
    [props](#props): [Record](https://docs.maptiler.com/sdk-js/api-reference/types/Externals.Record/)<string, number | null\>;  
    [userData](#userdata)?: [Record](https://docs.maptiler.com/sdk-js/api-reference/types/Externals.Record/)<string, any\>;  
}

##### Index

### Properties[](#properties)

[delta](#delta) [easing?](#easing) [props](#props) [userData?](#userdata)

## Properties[](#properties-1)

### delta[](#delta)

delta: number

### `Optional`easing[](#easing)

easing?: [EasingFunctionName](https://docs.maptiler.com/sdk-js/api-reference/types/EasingFunctionName/)

### props[](#props)

props: [Record](https://docs.maptiler.com/sdk-js/api-reference/types/Externals.Record/)<string, number | null\>

### `Optional`userData[](#userdata)

userData?: [Record](https://docs.maptiler.com/sdk-js/api-reference/types/Externals.Record/)<string, any\>