Javascript Basic 13 new Map()

Published: 25 July 2022
on channel: viRan Code

JavaScript Maps
A Map holds key-value pairs where the keys can be any datatype.
A Map remembers the original insertion order of the keys.

Method Description

new Map() Creates a new Map
set() Sets the value for a key in a Map
get() Gets the value for a key in a Map
delete() Removes a Map element specified by the key
has() Returns true if a key exists in a Map
entries() Returns an iterator with the [key, value] pairs in a Map

Property Description

size Returns the number of elements in a Map

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