Module:Sandbox/shreyasminocha explained

-- shreyasminocha Google Code-in, Introduction to Lua in Wikipedia-- shreyasminocha Google Code-in, Working with modules

local 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

function p.temperature(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 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 out = string.upper(string.sub(str, 1, 1)) .. 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.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 fallbackList = mw.language.getFallbacksFor(frame.args.langcode) local list = "" for i = 1, #fallbackList do list = list .. fallbackList[i] .. " " end return listend

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 if ttl

nil or ttl

"" then return "ERROR: You did not pass a `title` parameter to check" end if type(ttl) ~= 'string' and type(ttl) ~= 'number' then return "ERROR: `title` must either be a string or a number" end local ttlobj = mw.title.new(ttl) if ttlobj

nil then return "ERROR: An error occurred when attempting to retrieve page info" end return (ttlobj.text .. " " .. (ttlobj.exists and "exists" or "does not exist") .. " and " .. (ttlobj.isRedirect and "is" or "is not") .. " a redirect" )end

return p