how to use map in angular 8 code example

Example: angular map

let map = new Map();
map.set() – method to add entries in Map
map.get() – to retrieve an entry from Map
map.has() – to existence of an entry in the Map
map.delete() – deletes an entry from the Map
map.size – ‘size’ property will return size of Map
map.clear()-to clear the Map data