Map On Javascript Object
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Map On Javascript Object
Static properties get map [@@species] the constructor function that is used to create derived objects. Es6 provides a new collection type called map that addresses these deficiencies. In an object method, this refers to the object.
It creates a new array without modifying the elements of the original array. Definition and usage map () creates a new array from calling a function for every array element. In this tutorial, i will show you how to use this map method with an array of objects with an example.
When calling object.keys it returns a array of the object's keys.
Alone, this refers to the global object. An object does not have a property that represents the size of the map. Keys must be strings (or symbols) keys can be any datatype: Const map = new map (object.entries (obj)).
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