JavaScript Map delete()
- Rejea kufikia ukweli wa chini clear()
- Pya kuingia entries()
- Rejea kufikia ukweli wa juu Kitabu cha Taarifa cha Map cha JavaScript
Definition and usage
delete() Method used to delete elements from 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 | If element exists, it returns true, otherwise it returns false. |
Tabia la kusaidia kwa vifaa vya kusoma
map.delete() Ina jicho la ECMAScript6 (ES6).
Kuanza kuanzia 2017 wa Juni, tabia la kwa kila vifaa vya kusoma vingine vilisaidia ES6 (JavaScript 2015):
| Chrome | Edge | Firefox | Safari | Opera |
|---|---|---|---|---|
| Chrome 51 | Edge 15 | Firefox 54 | Safari 10 | Opera 38 |
| 2016 wa Mei | 2017 wa Aprili | 2017 wa Juni | Junali ya Septemba 2016 | Junali ya Juni 2016 |
map.delete() Haihusishwi kwenye Internet Explorer.
- Rejea kufikia ukweli wa chini clear()
- Pya kuingia entries()
- Rejea kufikia ukweli wa juu Kitabu cha Taarifa cha Map cha JavaScript
