I'm trying to create a new Map in Typescript like this: Map<String, List < String > >. Something like (this example is in java):

private map<String, List<String>> map = HashMap<String, ArrayList<String>();

Until now my code is:

myMap=new Map();

I tried different approaches but it doesn't work. How it can be done?

I'm trying to create a new Map in Typescript like this: Map<String, List < String > >. Something like (this example is in java):

private map<String, List<String>> map = HashMap<String, ArrayList<String>();

Until now my code is:

myMap=new Map();

I tried different approaches but it doesn't work. How it can be done?

• javascript
• angular
• typescript
• hashmap

Share Improve this question Follow edited Sep 14, 2021 at 12:27 denisiulian asked Sep 14, 2021 at 12:18 denisiuliandenisiulian 27388 silver badges2020 bronze badges

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1 Answer 1

Sorted by: Reset to default 8

const categoryMap = new Map<string, string[]>();

or

const categoryMap: Map<string, string[]> = new Map();