|
|
var yo = 1.0
yo++
yo += 1
print(yo) // 3.0
|
|
Cannot redeclare variables
|
/* var yo = 2.0 // 'yo' previously declared here */
|
|
Cannot change its type
|
/* yo = "yo" // cannot convert the expression's tyoe '()' to type 'Double' */
|
|
Declare multiple variables on one line, separated by commas
|
var a = 1.0, b = 2.0, c = 3.0
print(a + b + c) // 6.0
|
|
Declare the var's type if not immediately assigning a value.
|
var hey: String
/* print(hey) // variable 'hey' used before being initialized */
hey = "there"
print(hey) // there
|
|
Emoji var names
|
var 🐮 = "ridiculous"
print(🐮) // ridiculous
|