Go Learning
Chapter 01 - Tutorial
- Go has a lot of standard libraries and that's incredible
- I could read and make some rich examples, as an web server, client http with a methods
- Some aspects are confuse for me:
- Pointers, of course
- Method returns with more than one variable: resp, err := someMethod
- Package declaration for different programs in the exercises (vs code show some warnings)
Chapter 02 - Program Structure
Names
Go has just 25 keywords like if, for, const, var, etc;
There is no limit on name length, but convention and style in Go programs lean toward short names, especially for local variables with small scopes; you are much more likely to see variables named i than theLoopIndex. Generally, the larger the scope of a name, the longer and more meaningful it should be.
The zero-value mechanism ensures that a variable always holds a well defined value of its type; in Go there is no such thing as an uninitialized variable. This simplifies code and often ensures sensible behavior of boundary conditions without extra work. For example,
var s string
fmt.Println(s) // ""