JavaScript – Delete a Key from Map
To delete a key from Map in JavaScript, call delete() method on this map and pass the specific key as argument to it.
delete() method returns a boolean value. The return value is true if the key is successfully removed from the map, else, false.
Syntax
The syntax to remove/delete a specific key key from a Map map using delete() method is
map.delete(key)
Examples
In the following example, we take a Map with keys 'a', 'b', and 'c'. We shall delete the key 'b' using delete() method.
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If the specified key is not present, then delete() method does nothing and returns false.
In the following example, we try to delete a key 'x' which is not present in the Map map1.
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Conclusion
In this JavaScript Tutorial, we learned how to delete a specific key from a Map in JavaScript using delete() method, with examples.