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JavaScript JavaScript Array Iteration Methods Array Manipulation Return a Single Value from an Array with reduce()

Seth Missiaen
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Seth Missiaen
Web Development Techdegree Graduate 21,652 Points
Posted by Seth Missiaen
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Seth Missiaen
Web Development Techdegree Graduate 21,652 Points

Another solution to total names that start with "G"

I think the point of this video was to utilize the .reduce() method, but I did find another solution that was much more concise:

const gNames = names.filter(names => names.charAt(0) === 'G').length;

I felt that length was more intuitive, but is there a reason I would want to use .reduce() in this scenario instead? Does one require more processing power than the other? Thanks!

1 Answer

Steven Parker
Steven Parker
229,744 Points
Steven Parker
Steven Parker
229,744 Points

Your method is more concise and more efficient, but as you noted this was intended to be an illustration of how to use reduce.

But still, the fact that you're already thinking of ways to optimize code is evidence of your learning progress and grasp of the material. :+1: