Why functional programming matters

Management Tech Brief By HackerNoon

This story was originally published on HackerNoon at: https://hackernoon.com/why-functional-programming-matters-c647f56a7691.
I’ve been working as a software engineer for sixteen years, and in those years I’ve been to countless of job interviews, but I’m still dumbfounded by how this is mostly done by companies. The majority of interviews for engineering positions focus on algorithms and data structures. Candidates must answer questions like how to find the longest subarray of an array with a given sum, what is the complexity of their solution, how can it be improved etc., usually at a whiteboard. Whiteboarding sessions are meant to reveal computer science proficiency, understanding of subjects like the Big O notation, but also generic problem solving skills. They are also meant to give interviewers a feel of how it is to collaborate and work together with the candidate.
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