Variables¶

Variables are assigned with =. No declaration keyword is needed.

x = 10
name = "Luz"
items = [1, 2, 3]
data = {"score": 100}
empty = null

Reassignment¶

Variables can be reassigned to any type at any time:

x = 10
x = "now a string"
x = true

Scope¶

Variables live in the scope where they are assigned. Functions create their own scope. Inner scopes can read variables from outer scopes (closures), but assigning in an inner scope creates a new local variable — it does not modify the outer one.

x = 10

function show() {
    write(x)   # reads outer x → 10
}

function shadow() {
    x = 99     # creates a new local x, does not touch outer x
    write(x)   # 99
}

show()
shadow()
write(x)   # still 10

Compound assignment¶

Luz does not have += or -=. Use the full form:

count = count + 1
total = total * 2