Map.prototype.clear()

The clear() method removes all elements from a Map object.

Try it

Syntax

clear()

Return value

Examples

Using clear()

const myMap = new Map();
myMap.set("bar", "baz");
myMap.set(1, "foo");

console.log(myMap.size); // 2
console.log(myMap.has("bar")); // true

myMap.clear();

console.log(myMap.size); // 0
console.log(myMap.has("bar")); // false

Specifications

Specification
ECMAScript Language Specification
# sec-map.prototype.clear

Browser compatibility

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See also