size Property (Map) (JavaScript)

Returns the number of elements in a map.

sizeVar = mapObj.size

sizeVar

Required. Any number.

mapObj

Required. Any Map object.

Supported in the Internet Explorer 11 standards document mode. Also supported in Store apps (Windows 8.1 and Windows Phone 8.1). See Version Information. Not supported in the following document modes: Quirks, Internet Explorer 6 standards, Internet Explorer 7 standards, Internet Explorer 8 standards, Internet Explorer 9 standards, Internet Explorer 10 standards. Not supported in Windows 8.

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