JS: Map.prototype

What is Map.prototype

Map.prototype is the value of the property key "prototype" of the function Map. [see Map Object]

Map.hasOwnProperty("prototype")

Type

Type of Map.prototype is Object .

typeof Map.prototype === "object"

Parent

Parent of Map.prototype is Object.prototype .

Reflect.getPrototypeOf(Map.prototype) === Object.prototype

Purpose

Purpose of Map.prototype object is to provide methods and properties useful for all map instances.

Map.prototype is the parent of all map instances.

Reflect.getPrototypeOf(new Map()) === Map.prototype

[see the Map Object Tutorial]

Properties

Value Properties

• constructor
• size
• [Symbol.toStringTag]

Function Properties

get/set

• get
• set
• has
• delete
• clear

loop

• forEach
• entries
• [Symbol.iterator] → same as entries
• keys
• values