Module:Sandbox/Melvintong1516 Explained

--Melvintong1516 - Google Code-in 2019, Introduction to Lua in Wikipedia--Lua Task 2 - Working with moduleslocal p =

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

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

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

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

function p.people(frame) local friends = local msg = "" for l = 1, #friends do msg = msg .. "Hello " .. friends[l] .. "
" end return msgend

function p.sent(frame) local txt = frame.args.text or "" local out = string.sub(string.upper(txt, 1), 1, 1) .. string.sub(txt, 2) return outend

function p.unpack(frame) local dmy = frame.args.dmydate or "" local d, m, y = string.match(dmy, "(%d+) (%w+) (%d+)") return "Year = " .. y .. "
Day = " .. d .. "
Month = " .. mend

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

function p.fallbacklangs(frame) local langcode = frame.args.langcode local msg = "" local fallback = mw.language.getFallbacksFor(langcode) for l = 1, #fallback do msg = langcode.. msg .. l .. ". " .. fallback[l] .. "
" end return msgend

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

p.pginfo = function(frame) local title = frame.args.title local ttlobj = mw.title.new(title) local msg1 = "" local msg2 = "" if ttlobj

nil then error_msg = "The value input is invalid" return error_msg else local exists = ttlobj.exists local redirect = ttlobj.isRedirect if exists

true then msg1 = " exist " else msg1 = " does not exist " end if redirect

true then msg2 = " is a redirect " else msg2 = " is not a redirect " end local txt = ttlobj.text local msg = txt .. msg1 .. " and " .. msg2 return msg endend

-- Get datep.getdate = function(frame) local qid = frame.args.qid local prop = frame.args.prop local valtbl = mw.wikibase.getBestStatements(qid, prop) local dmy = string.sub(valtbl[1].mainsnak.datavalue.value.time, 2, 11) return dmyend

p.getfulldate = function(frame) local qid = frame.args.qid local prop = frame.args.prop local monthname = local valtbl = mw.wikibase.getBestStatements(qid, prop) local dmyinfo = string.sub(valtbl[1].mainsnak.datavalue.value.time, 2, 11)

local y, m, d = string.match(dmyinfo, "(%d+)-(%d+)-(%d+)") local month = monthname[tonumber(m)] return d .. " " .. month .. " " .. yend

p.getitem = function(frame) local qid = frame.args.qid local prop = frame.args.prop local valtbl = mw.wikibase.getBestStatements(qid, prop) local id = valtbl[1].mainsnak.datavalue.value.id local idw = mw.wikibase.getLabel(id) return idwend

return p