[Edit]

JavaScript - remove items from Map

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Created by:

Imaan-Morin

1009

In this article, we would like to show you how to remove items from Map in JavaScript.

Quick solution:

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mapName.delete('keyName');

Practical example

Edit

In this example, we remove Map item by key using delete method.

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const myMap = new Map([
  ['key1', 'value1'],
  ['key2', 'value2'],
  ['key3', 'value3'],
]);
​
myMap.delete('key1');
​
myMap.forEach((item) => console.log(item));

Auto running

Output:

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value2
value3

Remove all items

Edit

In this example, we use clear() method to remove all items from the Map.

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const myMap = new Map([
  ['key1', 'value1'],
  ['key2', 'value2'],
  ['key3', 'value3'],
]);
​
myMap.clear();
​
console.log(myMap.size); // 0