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---
title: Map.prototype.delete()
short-title: delete()
slug: Web/JavaScript/Reference/Global_Objects/Map/delete
page-type: javascript-instance-method
browser-compat: javascript.builtins.Map.delete
sidebar: jsref
---
The **`delete()`** method of {{jsxref("Map")}} instances removes the entry specified by the key from this `Map`.
{{InteractiveExample("JavaScript Demo: Map.prototype.delete()")}}
```js interactive-example
const map = new Map();
map.set("bar", "foo");
console.log(map.delete("bar"));
// Expected result: true
// True indicates successful removal
console.log(map.has("bar"));
// Expected result: false
```
## Syntax
```js-nolint
mapInstance.delete(key)
```
### Parameters
- `key`
- : The key of the entry to remove from the `Map` object. Object keys are compared by [reference](/en-US/docs/Glossary/Object_reference), not by value.
### Return value
`true` if an entry in the `Map` object has been removed successfully. `false` if the key is not found in the `Map`.
## Examples
### Using delete()
```js
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
{{Specifications}}
## Browser compatibility
{{Compat}}
## See also
- {{jsxref("Map")}}
- {{jsxref("Map.prototype.clear()")}}
- {{jsxref("Map.prototype.get()")}}
- {{jsxref("Map.prototype.set()")}}
- {{jsxref("Map.prototype.has()")}}
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