JS: Map (class)

What is the Keyword “Map”

Map is the value of the property key "Map" of the Global Object .

console.log(globalThis["Map"] === Map);

Type

Type of Map is a function.

typeof Map === "function"

Parent

Parent of Map is Function.prototype.

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

Purpose

Purpose of Map is:

• To create instance of Map Object.
• Used as a namespace to hold static methods.
• Holds the property key "prototype". Its value is the parent of all instance of map.

Constructor

• JS: Map Constructor

Properties

• JS: Map.prototype

• JS: Map.groupBy