Module:Sandbox/Nathan fraignt explained

-- Nathan Fraignt Google Code-in, Introduction to Lua in Wikipedia-- Introduction to Lua part 2.local p = -- p stands for package

p.hello = function(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) if cel

nil then cel = 0 end 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 4

p.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 .. " equals " .. 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

p.sentence = function(frame) local str = frame.args.words or "" local first_letter = string.upper(string.sub(str, 1, 1)) local out = first_letter .. 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.unpackdateUSA = function(frame) local dmydate = frame.args.dmydate or "" local month, day, year = string.match(dmydate, "(%w+) (%d+), (%d+)") return "Year = " .. year .. "
Day = " .. day .. "
Month = " .. monthend

p.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 or "" local returnString = "" for k, v in pairs(mw.language.getFallbacksFor(langCode)) do returnString = returnString .. k .. " - " .. v .. "
" end return returnStringend

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 ttl = frame.args.title local ttlobj = mw.title.new(ttl) local returnString = ttlobj.text if ttlobj.id

0 then returnString = returnString .. " does not exist" else returnString = returnString .. " exists" end if ttlobj.isRedirect then returnString = returnString .. " and is a redirect." else returnString = returnString .. " and is not a redirect." end return returnStringend

return p