Scope of Variables in Go Last Updated : 01 Nov, 2024 Comments Improve Suggest changes Like Article Like Report Prerequisite: Variables in Go Programming Language The scope of a variable defines the part of the program where that variable is accessible. In Go, all identifiers are lexically scoped, meaning the scope can be determined at compile time. A variable is only accessible within the block of code where it is defined.Examplepackage main import "fmt"// Global variable declaration var myVariable int = 100 func main() { // Local variable inside the main function var localVar int = 200 fmt.Printf("Inside main - Global variable: %d\n", myVariable) fmt.Printf("Inside main - Local variable: %d\n", localVar) display() }func display() { fmt.Printf("Inside display - Global variable: %d\n", myVariable) }Syntaxvar variableName type = value Table of ContentLocal VariablesGlobal VariablesLocal Variable PreferenceLocal VariablesLocal variables are declared within a function or a block and are not accessible outside of it. They can also be declared within loops and conditionals but are limited to the block scope.Example: Go package main import "fmt" func main() { var localVar int = 200 // Local variable fmt.Printf("%d\n", localVar) // Accessible here } Output200 Global VariablesGlobal variables are defined outside any function or block, making them accessible throughout the program.Example: Go package main import "fmt" // Global variable declaration var myVariable int = 100 // Global variable func main() { fmt.Printf("%d\n", myVariable) // Accessible here } Output100 Local Variable PreferenceWhen a local variable shares the same name as a global variable, the local variable takes precedence within its scope.Example Go package main import "fmt" // Global variable declaration var myVariable int = 100 // Global variable func main() { var myVariable int = 200 // Local variable fmt.Printf("Local variable takes precedence: %d\n", myVariable) // Accesses local variable } OutputLocal variable takes precedence: 200 Comment More infoAdvertise with us Next Article Scope of Variables in Go A anshul_aggarwal Follow Improve Article Tags : Go Language Go-Basics Golang Similar Reads Golang Tutorial - Learn Go Programming Language This Golang tutorial provides you with all the insights into Go Language programming, Here we provide the basics, from how to install Golang to advanced concepts of Go programming with stable examples. 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In programming languages also it is same i.e., once the value of constant is defined, it cannot be modified further. There can be any basic data type of constants like an integer constant, a floating constant, a character constant, or a string literal. 6 min read Like