if u have no packages can use

go mod init <module_name>

dataType

The unsafe.Sizeof function is very useful for understanding how much memory different variables consume. The size of int is platform-dependent and can be checked using bits.UintSize. Floating-point numbers have fixed sizes (float32 and float64), which are consistent across platforms.

those ones that already exists its values are value type and the one that refrence exists at stack are refrence type

 var jp *int = &j 

Pointer Type *int:

The asterisk (*) before the int indicates that jp is a pointer variable that points to an integer type

go-cli

go bug go build --> make exec file go clean go doc --> eg go doc fmt go env

gc

go has heap and stack that point to them and gc works with heap to find ones that need to be cleaned

Always prefer a rune slice when dealing with strings that might contain multi-byte characters to prevent misinterpretation of characters. Go standard libraries provide robust support for Unicode, allowing developers to manipulate text in a multilingual context easily.

python

uses pass by assignment