The delete() method of Map instances removes the specified element from this map by key.

Syntax

mapInstance.delete(key)

Parameters

• key
  • : The key of the element to remove from the Map object.

Return value

true if an element in the Map object existed and has been removed, or false if the element does not exist.

Examples

Using delete()

const myMap = new Map();
myMap.set("bar", "foo");

console.log(myMap.delete("bar")); // Returns true. Successfully removed.
console.log(myMap.has("bar")); // Returns false. The "bar" element is no longer present.

Specifications

Browser compatibility

See also

• Map