Accessing Global Variables in Go
You are attempting to declare a globally accessible variable outside of the main() function in Go, but are encountering an error. The appropriate approach depends on whether the variable should be constant or mutable.
For Non-Constant Variables
To declare a non-constant variable outside of a function and make it accessible within a package, use the following syntax:
var test = "A Test Value"
In this case, the lowercase t in the variable name indicates that it is only visible within the package (unexported).
Here's an example:
package apitest import "fmt" var sessionID string func main() { // Check and update sessionID as needed... }
For Constant Variables
For constants, use the const keyword instead of var. The syntax is:
const test = "A Test Value"
Constants must be given a value during declaration and cannot be changed later.
Additional Notes
- You can use init() function to initialize package-level variables before main() is run.
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