I just finished this challenge yesterday, but not without a struggle. This was recently pushed up to the JavaScript Fundamentals area of the Certified Full Stack Developer curriculum. Two things: 1) This challenge requires some understanding of currying, which I don’t think was discussed in any of t…

Thanks! Good to see another approach to this one! Here’s a good reference on rest parameters, if anyone is interested: Rest parameters - JavaScript | MDN

Optional Arguments Sum Function

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Dovb1ek September 25, 2025, 12:05pm 2

https://forum.freecodecamp.org/t/build-an-optional-arguments-sum-function-build-an-optional-arguments-sum-function/760897?u=dovb1ek

See this post bro!

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Optional Arguments Sum Function

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