private readonly _subscriptions:???? = new Map([
['a', new Map()],
['b', new Map()],
['c', new Map()],
['d', []]
])
No suitable type was found for this map. I tried various options without success.
It should probably be something like Map | []
private readonly _subscriptions:Map<string, {}|[]> = new Map([
private readonly _subscriptions:Map<string, Map<string,[]>|[]> = new Map([