![]() An array allows you to store several values with the same name and access them by using their index number. Arrays are used when we have a list of items. ![]() The Javascript Arrays are not associative in nature. More clearly, om(obj, mapFn, thisArg) has the same result as om(obj).map(mapFn, thisArg), except that it does not create an intermediate array, and mapFn only receives two arguments ( element, index) without the whole array, because the array is still under construction. JavaScript Array is a single variable that is used to store elements of different data types. If the arrayLike object is missing some index properties, they become undefined in the new array.Īom() has an optional parameter mapFn, which allows you to execute a function on each element of the array being created, similar to map(). To convert an async iterable to an array, use omAsync().Īom() never creates a sparse array. To convert an ordinary object that's not iterable or array-like to an array (by enumerating its property keys, values, or both), use Object.keys(), Object.values(), or Object.entries(). join() the elements of the resulting array, using any separator you want (e.g.
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