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    Create a Reusable Mapping Function with Ramda's Map

    Using the map method of an array is a great way to create new data from an existing array in an immutable way and without writing any loops. The problem is that you need to call it on an existing array instance. In the lesson we'll see how to build our own reusable map utility function using manual currying and then we'll replace it with Ramda's map.

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