lua hash keys

Sure! Here is an explanation of how to use hash keys in Lua:

  1. In Lua, a hash table is called a table, and it is a collection of key-value pairs. The keys can be of any data type, except nil, and the values can be any Lua value, including tables themselves.

  2. To create a table in Lua, you can use the curly braces {} or the function call syntax table.concat(). For example:

local myTable = {}


local myTable = table.concat()

  1. To assign a value to a key in a table, you can use the assignment operator =. For example:

myTable["key"] = "value"


myTable.key = "value"

  1. To access the value associated with a specific key in a table, you can use the key within square brackets []. For example:

local myValue = myTable["key"]


local myValue = myTable.key

  1. If a key does not exist in a table, accessing it will return nil.

  2. To remove a key-value pair from a table, you can use the assignment operator = and set the value to nil. For example:

myTable["key"] = nil


myTable.key = nil

  1. To iterate over the keys and values in a table, you can use the pairs() function. For example:

for key, value in pairs(myTable) do print(key, value) end

This will print each key-value pair in the table.

That's it! These are the basic steps for using hash keys in Lua. Let me know if you have any further questions.