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Ah, I was gonna say, I didn't know that WAS a function on array!
I think this is the line that is a bit confusing You have been keeping up to date with new stuff in JS but are not sure that sum() is part of the Array prototype methods. That implies that it might be and you just don't know it? I might say, You have been keeping up to date with new stuff in JS and know that sum() is not part of the Array prototype methods.
Ah, I was gonna say, I didn't know that WAS a function on array!
I think this is the line that is a bit confusing
You have been keeping up to date with new stuff in JS but are not sure that sum() is part of the Array prototype methods.That implies that it might be and you just don't know it? I might say,You have been keeping up to date with new stuff in JS and know that sum() is not part of the Array prototype methods.I think you are right and that section might need a bit of a revision to be clearer. I will take a stab at it, feel free to propose something as well.