Javascript Object Map Is Not A Function

If you are curious, the mapfn parameter we used is part of the array.from() method, and it is designed to work as a mapping function. Map to array of objects javascript; Map() creates a new array from calling a function for every array element.

Mapping an object to array of objects; This is what i have: Maybe the object you are calling the method on does not have this function?

Undefined is not a function (near ‘… wines.map.’).

Delete() removes a map element specified by a key: Map inherits the object, which means that you can technically still use the object’s prototype functions on a map.but with an object, you cannot use any of map’s functions since object is the “parent” class. A map object iterates entries, keys, and values in the order of entry insertion. To iterate over an object, use the object.keys () method to get an array of the object’s keys and call the map () method on the array.