Map.prototype.clear()

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

Syntax

myMap.clear();

Return value

undefined.

Examples

Using clear()

var myMap = new Map();
myMap.set('bar', 'baz');
myMap.set(1, 'foo');

myMap.size;       // 2
myMap.has('bar'); // true

myMap.clear();

myMap.size;       // 0
myMap.has('bar')  // false

Specifications

Specification
ECMAScript (ECMA-262)
The definition of 'Map.prototype.clear' in that specification.

Browser compatibility

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See also