learning$js

.size

PrevNext
Term side of the Card
Topic: Map
Unit title: .size
Categories: Property
Explanation side of the Card

Explanation: The property that returns the number of key-value pairs currently stored in the `Map` object. It provides the size of the map as a numeric value.

Browser compatibility:
  • The chrome browser supports this feature starting from version 38
  • The edge browser supports this feature starting from version 12
  • The firefox browser supports this feature starting from version 19
  • The safari browser supports this feature starting from version 8
Availability: