In Lua, an **array** is an arrangement of data.
>**Note:** Due to the fact that Lua is *dynamically typed*, it allows different types inside the same array.
 
# 
## Inizialize an array

## 
##  One-dimensional array
We can initialize an array with `{}`, as shown below:
```lua
array = {}
```

###
### Multi-dimensional array
Lua also supports multi-dimensional arrays; we just need to initialize it. For example:
```lua
array = {} -- an empty array
array[1] = {} -- the second element is also a nested array
```

>**Note:** Every element in an array is indexed with an integer. 


## Code
### One-dimensional array
Let's look at how to read and write into a one-dimensional array:


-- inizialize an array
array = {}

-- write into it
array[0] = "Hello,"
array[1] = "Educative!"

-- print elements
print(array[0], array[1])

lua-code

#      
##       
### Expected output
```Console
Hello, Educative!
```

## 
### Multi-dimensional array
When we need to work with multi-dimensional arrays, we need to initialize every nested array and access the numeric index in each row.

-- inizialize an array and add a nested array as second element
marray = {}
marray[1] = {}

-- add some data
marray[0] = "Hello, "
marray[1][0] = "Educative!"
marray[1][1] = "Dario!"

-- print some element
print(marray[0], marray[1][0])
print(marray[1][1])

#      
##      
### Expected output
```Console
Hello, Educative!
Dario!
```



## Array indexing
In Lua, the index of an array starts from 1 by default. Accessing other indexes will return `nil`.

-- inizialize an array
array1 = {"Hello,", "Educative!"}

-- print elements
print(array1[0], array1[1], array1[2])

#      
##       
### Expected output
```Console
nil,  Hello,  Educative!
```

We can also start an array from any index value e.g. 0, 1, -3, or any other value. 

-- inizialize another array
array2 = {}

-- write into it
array2[-3] = "Hello,"
array2[-2] = "Welcome"
array2[-1] = "to"
array2[0] = "the"
array2[1] = "Educative!"

-- print elements
for i = -3, 1 do
    print(array2[i])
end

#      
##       
### Expected output
```Console
Hello, 
Welcome
to
the
Educative!
```


lua.tar.gz

How do arrays work in Lua?

In Lua, an array is an arrangement of data.  Note: Due to the fact that Lua is dynamically typed, it allows different types inside the same array.   Inizialize an array  One-dimensional array We can initialize an array with {}, as shown below: array = {}   Multi-dimensional array Lua also supports multi-dimensional arrays; we just need to initialize it. For example: array = {} -- an empty array array[1] = {} -- the second element is also a nested array   Note: Every element in an array is indexed with an integer.  Code One-dimensional array Let s look at how to read and write into a one-dimensional array: 