Scopes and definitions

Scopes and definitions

Scopes

Local scopes can only read variables from the global scope, no longer have permission to change them.

Ex:

    global = "abc"

    fun change() do
        print(global)  # => "abc"
        global = "cba"
        print(global)  # => "cba"
    end

    change()    
    print(global)  # => "abc"

When you assign a new value to a global variable within a function’s scope, a new variable is declared with the same name as the global variable and it takes precedence.

Definitions

Drax despite allowing reassociations in variables, under the hood it does not change the value, but the reference in the definitions table

for example:

fun sum(a) do
    a + 1
end

ref = sum

fun sum(a) do
    a + 50
end

sum(10) # => 60
ref(10) # => 11