JS: Map.prototype.entries

By Xah Lee. Date: . Last updated: .

New in JS2015.

mapObj.entries ( )
Return a Iterable Object for the map instance mapObj. Each yield is a array of the form [key, value].

Map.prototype.entries is the same as Map.prototype[Symbol.iterator] [see Symbol Tutorial]. This means, map object itself is already iterable using exactly the same iterator. So this method is redundant.

Map.prototype.entries === Map.prototype[Symbol.iterator]
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