Map.prototype.delete()

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

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

Try it

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

Specification
ECMAScript Language Specification # sec-map.prototype.delete

Browser compatibility

	Desktop					Mobile						Server
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	WebView Android	Deno	Node.js
`delete`	38	12	13	25	8	38	14	25	8	3.0	38	1.0	0.12.0