Create an empty table -

a = {}

Create a table with the numbers 1,2,3 assigned -

b = {1,2,3}

Create a table with the strings "a","b","c" assigned -

c = {"a","b","c"}

We are unable to call print() on tables directly. See Printing tables.

You can use the print() function to write a line to the stdout.

• print("Hello"), or
• print "Hello"

• io.write("Hello")

You are able to make multiple assignments at the same time.

• a,b,c,d,e = 1, 2, "three", "four", 5

 

The above assign is equivalent to the code below.

• a = 1
• b = 2
• c = "three"
• d = "four" 
• e = 5

• a = 1
  b = 2 
• a,b = b,a 
• now a = 2 and b = 1

The following words are all reserved for internal functions in Lua.

• and, 
• break, 
• do, 
• else, 
• elseif, 
• end, 
• false, 
• for, 
• function, 
• if, 
• in, 
• local, 
• nil, 
• not, 
• or, 
• repeat, 
• return, 
• pairs,
• then,
• true, 
• until, 
• while

These words cannot be used for variable names, but Lua is case sensitive, so 'and' is reserved and can't be a variable, but 'aND, aNd, AND, anD, AnD, And, ANd' are not reserved and can be used as variables.