JavaScript Map delete()
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Definition and usage
delete() Method used to delete elements from the Map.
instance
// Create a Map
const fruits = new Map([
["apples", 500],
["bananas", 300],
["oranges", 200]
]);
// Delete an element
fruits.delete("apples");
Syntax
map.delete(key)
Parameter
| Parameter | Description |
|---|---|
| key | Required. The key of the element to be deleted. |
Return value
| Type | Description |
|---|---|
| Boolean | Returns true if the element exists, otherwise returns false. |
Browser support
map.delete() Is a feature of ECMAScript6 (ES6).
Starting from June 2017, all modern browsers support ES6 (JavaScript 2015):
| Chrome | Edge | Firefox | Safari | Opera |
|---|---|---|---|---|
| Chrome 51 | Edge 15 | Firefox 54 | Safari 10 | Opera 38 |
| 2016 May | 2017 April | 2017 June | September 2016 | June 2016 |
map.delete() Not supported in Internet Explorer.
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