Question

How to filter a map in TypeScript

Answer 1

const myMap: Map<string, number> = new Map([
  ['a', 1],
  ['b', 2],
  ['c', 3],
  ['d', 4],
  ['e', 5],
  ['g', 6]
]);

// Filter for values greater than 2
const filteredMap: Map<string, number> = new Map(
  [...myMap.entries()].filter(([key, value]: [string, number]) => value > 2)
);

console.log(filteredMap);




/*
run:

Map (4) {"c" => 3, "d" => 4, "e" => 5, "g" => 6} 

*/

 

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