I am currently reading a book called “The Go Programming language”. There is a section explaining the scope of variables. I am having a hard time understanding how the code in the link works. Please help me understand the same. Thanks in advance!! Program can be found here: https://play.golang.org/…

[image] How to post code on this forum Site Feedback Hi Then posting code on this forum it is very good to do it in one of these ways: As a link till Go Playground https://play.golang.org Type in your code or paste it. Press the Format button to get it nicely formatted…

Each curly brace { creates a new block (or you may say scope). Any variables declared in a block will belong to that block. So, x := "hello!" belongs to func main(). However, inner blocks, such as the for statement’s block can also see it. x := x[i] inside the for statement belongs to that for st…

Ashwin, lets go line by line. First of all, Johan gave a good call to post the code on this forum. At least, do it after you read his message. We can explain efficiently and with more accuracy. Going deeper in this code, it takes for every letter in the string and set it uppercase. Imo I guess y…

I’ll keep this in mind! Thanks for pointing it out.

Thank you for the response. It’s clear now. :slight_smile:

Thank you for the resource :slight_smile:

Ashwin, Be careful because this code example you posted has something called variable shadowing that is discouraged in go. This happens when an variable from an outer scope has the same name as a variable in an inner scope and it might cause confusion for someone who is not really familiar with th…

Scope of variables in a program

Getting Help

johandalabacka (Johan Dahl) November 29, 2018, 6:40am 3