Module:Sandbox/mdu02 explained

--Google Code-in, Introduction to Lua in Wikipedia--Google Code-in, Working with modules, Calculations and testslocal p = -- p stands for package

function p.hello(frame) return "Hello, world!"end

p.Hi = function(frame) strName = frame.args.name or "Jimbo" return "Hello from Lua to my friend " .. strName .. ".
"end

p.temperature = function(frame) cel = tonumber(frame.args.celsius) or 0 fah = (cel * 9 / 5)+32 msg = cel .. " degrees Celsius is " .. fah .. " degrees Fahrenheit." if cel > 9 then msg = msg .. " It is warm." else msg = msg .. " It is cold." end return msgend

-- Task 4p.times = function(frame) local num = tonumber(frame.args.num) or 2 local out = num .. " Times table
" for i = 1, 12 do out = out .. num .. " times " .. i .. " is " .. i * num .. "
" end return outend

p.mum = function(frame) local family = local msg = "" for i = 1,#family do msg = msg .. "Hello " .. family[i] .. "
" end return msgend

-- Task 5p.sentence = function(frame) local str = frame.args.words or "" local out = string.upper(string.sub(str, 1,1)) out = out .. string.sub(str, 2) return outend

p.unpackdate = function(frame) local dmydate = frame.args.dmydate or "" local day, month, year = string.match(dmydate, "(%d+) (%w+) (%d+)") return "Year = " .. year .. "
Day = " .. day .. "
Month = " .. monthend

p.unpackmdydate = function(frame) local mdydate = frame.args.mdydate or "" local month, day, year = string.match(mdydate, "(%w+) (%d+), (%d+)") return "Year = " .. year .. "
Day = " .. day .. "
Month = " .. monthend

-- Task 6p.langnames = function(frame) local langlist = mw.language.fetchLanguageNames local langs = "" local count = 0 for k, v in pairs(langlist) do langs = langs .. k .. " - " .. v .. "
" count = count + 1 end return langs .. "
= " .. count .. " languages"end

p.fallbacks = function(frame) local langcode = frame.args.langcode local fbcodes = mw.language.getFallbacksFor(langcode) local thisfb = langcode .. " fallbacks: " for i,j in pairs(fbcodes) do thisfb = thisfb .. j ..", " end thisfb = string.sub(thisfb, 1, #thisfb-2) .. "
" return thisfbend

p.pagename = function(frame) local ttl = frame.args.title local ttlobj = mw.title.new(ttl) local txt = ttlobj.text return txtend

p.pageinfo = function(frame) local msg = "" local ttl = frame.args.title or false if ttl and true

false then msg = msg .. "Error" else local ttlobject = mw.title.new(ttl) if ttlobject.exists

false then msg = msg .. ttl .. " does not exist and is not a redirect" end if ttlobject.isRedirect

false and ttlobject.exists

true then msg = msg .. ttl .. " exists and is not a redirect" end if ttlobject.isRedirect

true and ttlobject.exists

true then msg = msg .. ttl .. " exists and is a redirect" end end return msgend

p.pageinfodebug = function(frame) local ttl = frame.args.title local ttlobj = mw.title.new(ttl) msg = ttlobj.exists return msgend

return p