[Go] Add numbers concept exercise

[DavyJ0nes]

I've taken the approach outlined in the C# example but I'm not entirely confident that this is the correct approach for an intro exercise as it requires type conversion. This may be OK but I'd like to others opinions on it.

As Go has quite a few different numeric types, I've limited it to just int and float64 and given links in to the introduction if students want to dig in more.

This satisfies #371

[tehsphinx]

Thank you! Very good introduction!

Just some minor changes :)

[tehsphinx]

I've taken the approach outlined in the C# example but I'm not entirely confident that this is the correct approach for an intro exercise as it requires type conversion. This may be OK but I'd like to others opinions on it.

Type conversion doesn't have an extra exercise planned for now, so this exercise is where it gets introduced.

As Go has quite a few different numeric types, I've limited it to just int and float64 and given links in to the introduction if students want to dig in more.

Perfect! Different float types and usage are introduced more in-depth in a later exercise.

[DavyJ0nes]

@tehsphinx I've pushed another commit that changes the exercise to not require the use of conditionals. I still think that it is valid without this but when you get time if you could have a look at let me know what you think? 😄

[tehsphinx]

On first glance it seems very simple now but maybe that is a good thing: We are after all introducing numbers and type conversion here. Maybe put a bit more emphasis on the type conversion in the intro. What do you think?

In the general flow of the exercises, this one makes more sense without conditionals:

[DavyJ0nes]

Maybe put a bit more emphasis on the type conversion in the intro. What do you think?

Good call @tehsphinx , have added a paragraph explaining this a little bit and showing an example. Does this read OK?

[tehsphinx]

Does this read OK?

Yes, this looks good!

[DavyJ0nes]

@DavyJ0nes: Perfect! Can you add the successRate function then and bring it back in line with the C# exercise? Then we can merge this smiley

Nice one, I've updated this with the comments and have squashed the commits into one.

[iHiD]

Nice :)

I think we need to slim the introduction down a bit else it'll feel like too much reading for someone doing the exercise, so I've made some comments about parts I'd move into hints or after.

[DavyJ0nes]

Nice :)

I think we need to slim the introduction down a bit else it'll feel like too much reading for someone doing the exercise, so I've made some comments about parts I'd move into hints or after.

Thanks for the suggestions @iHiD, I've re-jigged the structure of the docs to not give too much away up front 😄

[tehsphinx]

Nice! 😍