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To print to Console you can use print() and dump() Functions.
Inside the String you can reference Properties by using \(name).
Example
//DECLARE VARIABLES.
var name = "John"
var age = 20
//DISPLAY VARIABLES.
print("Hello " + name) //Hello John
print("\(name) is \(age) years old") //John is 20 years old
dump ("\(name) is \(age) years old") //John is 20 years old
