Typescript object key enum

// Since 2018, there is an easier way in Typescript, 
//without using keyof typeof:

let layer: { [key in MyEnum]: any}

// To not have to include all keys:

let layer: { [key in MyEnum]?: an

Source: stackoverflow.com

Typescript object key as enum

let layer: Partial<Record<MyEnum, any>>;

Source: stackoverflow.com

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