Understanding Lua Arrays

Using Arrays in Tables

Lua arrays use tables with numeric indices starting at 1.

What is a Lua Array?

In Lua, arrays are implemented using tables, with numeric indices that start at 1. Unlike many programming languages where array indices start at 0, Lua's convention is 1-based indexing. This means the first element of a Lua array is accessed using index 1.

Creating a Simple Array

To create an array in Lua, you define a table and initialize it with values. Here's how you can do it:

Accessing Array Elements

Array elements in Lua can be accessed using their numeric indices. As mentioned earlier, these indices start at 1. Below is how you access elements:

Modifying Array Elements

You can modify elements in a Lua array by assigning new values to existing indices. Here's an example:

Iterating Over Arrays

Iterating over arrays in Lua can be done using the for loop. Below is an example of how you can iterate over an array:

Common Operations on Arrays

Lua provides several built-in functions to perform common operations on arrays, such as finding the length, inserting elements, and removing elements. Here are a few examples:

Lua Arrays