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Map with Object Keys

Use objects as keys in a Map.

Preview

Code

<script>
let user = {id:1};

let map = new Map();

map.set(user,"User data");

console.log(map.get(user));
</script>

More JS Maps Examples (7)

example JavaScript Map Example open example example Get Value from Map open example example Map Size Property open example example Check Key in Map open example example Delete Map Entry open example example Loop Through Map open example example Map Keys and Values open example