Variables

Variables are like containers that hold a data type. They are necessary to store and share a data around.

Defnitions

In NBCL, there are two ways a variable can be defined. Eeither using the let keyword or the const keyword.

let foo = 1
const bar = 2

Let Variables

Let variables are variables that are mutable. Which means that its value can be changed later on using an assignment.

Const Variables

Const variables (or constant variables) are immutable variables. Once they are defined, their values cannot be changed.

Assignments

Variables can be reassigned using the keyword set.

let foo = 1

# Change it to another value
set foo = 2

Constant variables (defined with const keyword) cannot be reassigned using the set keyword.

const foo = 1

# This will throw an error
set foo   = 2

Augmented assignments are also supported with set:

let foo = 0

# Add five to foo
set foo += 5

# Substract one from foo
set foo -= 1

# Multiply foo with three
set foo *= 3

# Divide foo by two
set foo /= 2

print(foo) # six