A tour of go exercise Errors

Getting Help
1

hello I’m new to Go
can you tell me how to implement this exercise as the tutorial wants this the link of the exercise https://tour.golang.org/methods/20
and that is the link of my code https://play.golang.org/p/9xS2adKA0F

I think it does what the tutorial wants but I don’t think that this is the right way to do it so can you help me??

thanks in advance

2

You are supposed to implement a multireturning function as in the example code on the exercise page.

Return resilt, nil on ok and 0, ErrNegativeSqrt(input) on negative input.

This is a common pattern in go.

3

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