String length

There are two ways to get the length of a string, either using the string.len() function, or by placing a # symbol in front of the string. Both methods work the same way, and they both return a number value. This number can be assigned to a variable or used in its place. You can call either method on a variable, or directly on a string. The following code demonstrates all of these concepts:

hello = "hello, world"
-- Assign length to variables
count_hash = #hello;
count_func = string.len(hello)
print ("The string:")
print (hello)
-- Print the variables assigned at the top
print ("Has a length of:")
print (count_hash)
print(count_func)
-- Use string literals, in place
print (#"hello, world")
print (string.len("hello, world"))