JavaScript Mastery from Zero to Hero - Prepare for Coding Interviews - Solution - Convert an Exponential Solution to a L

The video tutorial explains how to calculate the Fibonacci sum without using recursion. It begins with an introduction to the problem, followed by setting up a function to solve it. The instructor explains the loop logic used to calculate Fibonacci numbers and demonstrates debugging and testing with examples. The video concludes with an optimization of the solution for efficiency, highlighting the benefits of a linear approach over recursion.

What is the expected output when the input to the Fibonacci sum function is 5?

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How does the function ensure that it does not enter an infinite loop?

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What changes are made to return the sum instead of the Fibonacci result?

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Describe how the Fibonacci sum function improves efficiency compared to a recursive solution.

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