Julia examples - Variable Type

This short tutorials explains about how to get variable type.

How to get Variable datatype in Julia

typeof()function accepts variable, and returns the variable datatype

Print the result to console using println statement.

Here is an example

number = 11
println(typeof(number))

number1 = 11.12
println(typeof(number1))
name = "str"
println(typeof(name))
flag = false
println(typeof(flag))

println(typeof(Set([1,2,3])))

Output:

Int64
Float64
String
Bool
Set{Int64}

How to Check given variable is an Integer type

isa operator checks an given variable or expresion is an given data type. This useful in conditional statement checking such as if else expressions.

variable/expression isa datatype

if an variable is given datatype, returns true,else false.

number = 11

if number isa Number 
  println("Given value is a Number")
else
  println("Not a number")
end