This subsection will present another practical example that will be more advanced than the one presented in varTimes.go. You will see how to find the variable names with a given string length – you can use any string length you want. Additionally, the program will be able to differentiate between global variables and local variables.
A local variable is defined inside a function whereas a global variable is defined outside of a function. Global variables are also called package variables.
The name of the utility is varSize.go and it will be presented in four parts. The first part of varSize.go is as follows:
package main import ( "fmt" "go/ast" "go/parser" "go/token" "os" "strconv" ) var ...
