Module:Sandbox/Gnsjhenjie

--gnsJhenJie Google Code-in 2019, Introduction to Lua in Wikipedia 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

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

p.mum = function(frame) local family = {"Dad", "Mum", "Uncle Stan", "Aunty Elsie", "Brian","John","Jonah","Bill"} local msg = "" for i = 1, #family do msg = msg .. "Hello " .. family[i] .. " "	end return msg end

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

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 = " .. month end

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 local langlist = mw.language.getFallbacksFor( langcode ) local langs = "" for k, v in pairs(langlist) do langs = langs .. k .. " - " .. v .. " "	end return langs end p.pagename = function( frame ) local ttl = frame.args.title local ttlobj = mw.title.new( ttl ) local txt = ttlobj.text return txt end

p.pageinfo = function( frame ) local ttl = frame.args.title local ttlobj = mw.title.new(ttl) local exist = false local redirect = false if ttlobj.exists == true then exist = true end if ttlobj.isRedirect == true then redirect = true end if exist then if redirect == true then return ttl .. " exists and is a redirect " else return ttl .. " exists and is not a redirect " end else return ttl .. " does not exist and is not a redirect " end end

return p