How do map, reduce and filter functions work?Panda Interview Questions for Freshers/Panda Interview Questions and Answers for Freshers & Experienced

How do map, reduce and filter functions work?

Map function applies the given function to all the iterable and returns a new modified list. It applies the same function to each element of a sequence.

Reduce function applies the same operation to items of a sequence. It uses the result of operations as the first param of the next operation. It returns an item and not a list.

Filter function filters an item out of a sequence. It is used to filter the given iterable (list, sets, tuple) with the help of another function passed as an argument to test all the elements to be true or false. Its output is a filtered list.

Posted Date:- 2021-10-27 07:10:39

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