JS: Map.prototype

What is Map.prototype

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

Map.prototype is the parent of all map objects.

console.assert(Reflect.getPrototypeOf(new Map()) === Map.prototype);

Properties

Value Properties

• JS: Map.prototype.constructor
• JS: Map.prototype.size
• JS: Map.prototype[Symbol.toStringTag]

Function Properties

get and set

• JS: Map.prototype.get
• JS: Map.prototype.getOrInsert
• JS: Map.prototype.getOrInsertComputed
• JS: Map.prototype.set
• JS: Map.prototype.has
• JS: Map.prototype.delete
• JS: Map.prototype.clear

iteration

• JS: Map.prototype.forEach
• JS: Map.prototype.entries
• JS: Map.prototype.keys
• JS: Map.prototype.values

• Map.prototype[Symbol.iterator] same as Map.prototype.entries