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How to put variables in strings? [closed]

Asked by

8 years ago

I am not exactly sure how to do this. So my code is: script.Parent.ResponseDialog = "You have clicked me times" and in between "me" and "times" I want to put a variable in there, but how do I do so?

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2 answers

Answered by

Link150 1355

8 years ago

Edited 6 years ago

You use the string concatenation operator ... It basically serves to merge two string values together into one. E.g:

01local str1 = "Hello, "
02local str2 = "World!"
03 
04print("abc" .. "def") -- Would print "abcdef".
05print(str1 .. str2)  -- Would print "Hello, World!".
06 
07-- Lua numbers can also be automatically converted to strings. E.g:
08local age = 20
09 
10print("I am " .. age .. " years old.") -- Would print "I am 20 years old.".

Note that other Lua types will have to be transformed into strings using the "tostring()" function before being concatenated:

01-- All of these would fail miserably:
02 
03-- error:  attempt to concatenate a nil value
04print("nil:  " .. nil)
05 
06-- error: attempt to concatenate a boolean value
07print("boolean:  " .. true)
08 
09-- error:  attempt to concatenate a table value
10print("table:  " .. {})
11 
12-- error: attempt to concatenate a function value
13print("function:  " .. function() end)
14 
15-- error: attempt to concatenate a thread value
16print("coroutine:  " .. coroutine.create(function() end))
17 
18 -- error: attempt to concatenate a userdata value
19print("Vector3:  " .. Vector3.new())
20 
21------------------------------
22-- All of these are fine however:
23 
24-- Would print "nil:  nil".
25print("nil:  " .. tostring(nil))
26 
27-- Would print "boolean:  true".
28print("boolean:  " .. tostring(true))
29 
30-- Would print something like "table:  table: 12054C50".
31print("table:  " .. tostring({}))
32 
33-- Would print something like "function:  function: 2126CC78".
34print("function:  " .. tostring(function() end))
35 
36-- Would print something like "coroutine:  thread: 119CE48C".
37print("coroutine:  " .. tostring(coroutine.create(function() end)))
38 
39-- Would print "Vector3:  0, 0, 0".
40print("Vector3:  " .. tostring(Vector3.new()))
 View all 40 lines...

Hope this helps. If it did, please upvote my answer and mark it as accepted. If you need anything else, feel free to send me a message.

Answered by

jordan0810 55

8 years ago

1local amountOfTimes = 10
2 
3script.Parent.ResponseDialog =  "You have clicked me "..tostring(amountOfTimes).. "times")