HashTable and CssStyleObject

CssStyleObject.ts

type Dictionary<T> = { [key: string]: T };
type Nullable<T> = T | null;

// Use `&` for creating an intersection type!
type CssStyleObject = Partial<CSSStyleDeclaration> & Dictionary<Nullable<string>>;

/** Example
 * used for declaring partial css style objects
 **/
interface MyState {
  myStyle: CssStyleObject;
}

const state = reactive<MyState>({
   myStyle: {}
});

computed(() => {
      state.myStyle = {
        height: `${props.size}px`,
        width: `${props.size}px`
      };
});

Hashtable.ts

export interface HashTable<T> {
  [key: string]: T;
}