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variables

Contents

__Roadmap info from [ roadmap website ] (https://roadmap.sh/golang/go-basics/variables) __

Variables in Go

Variable is the name given to a memory location to store a value of a specific [ type ] (https://golangbot.com/types/).Go provides multiple ways to declare and use variables.Visit the following resources to learn more:

• @official@Go Variables

  • @article@Go by Example: Variables
  • @article@w3schools Go variables

  Go Variable Naming Rules

  A variable can have a short name (like x and y) or a more descriptive name (age, price, carname, etc.).

  Go variable naming rules:

  • A variable name must start with a letter or an underscore character (_)
  • A variable name cannot start with a digit
  • A variable name can only contain alpha-numeric characters and underscores (a-z, A-Z, 0-9, and _ )
  • Variable names are case-sensitive (age, Age and AGE are three different variables)
  • There is no limit on the length of the variable name
  • A variable name cannot contain spaces
  • The variable name cannot be any Go keywords

  Difference Between var and :=

  There are some small differences between the var and :=:

  var	:=
  Can be used inside and outside of functions	Can only be used inside functions
  Variable declaration and value assignment can be done separately	Variable declaration and value assignment cannot be done separately