type

s = type (v)

Returns a string, which is the type of the supplied variable:

• nil
• number
• string
• boolean
• table
• function
• thread
• userdata

print (type (42)) --> number
print (type ("42")) --> string
print (type (string)) --> table
print (type (tonumber)) --> function

Note that if its argument is nil, it returns "nil" - that is the string containing the word "nil".