variables are identifier to store the value, can be used later for processing.

It contains memory location of an variable that holds a value.

How to declare and intialize an variable in Julia

Julia contains variable declaration without a type

variable name is an valid identifier and not reserved word.

Syntax

variable = value

# variable declaration
 
# assign number
number = 12
 
# assign string
name = "john"
 
# assign float number
f = -34
 
# operator as variable name
- = "a"
 
# unicode variable name
$ = 30
 
println(number)
println(name)
println(f)
println(-)
println($)

Variable names rules and notes

  • Variables names starts with a to z or A to Z, underscore and special characters
  • Operators and unicode names are allowed as varialbe name
  • Inbuilt keywords are not allowed as names