WebCheck if string contains a word, in Lua Programming-Idioms Lua Idiom #39 Check if string contains a word Set the boolean ok to true if the string word is contained in string s as a substring, or to false otherwise. Lua ok = false if s: find (word, 1, true) then ok = true end Lua ok = s: find (word, 1, true) ~= nil Lua ok = s: find (word, 1, true) WebWe implement arrays in Lua simply by indexing tables with integers. Therefore, arrays do not have a fixed size, but grow as we need. Usually, when we initialize the array we define its …

Server-side scripting with Lua — Orthanc Book documentation

WebWe implement arrays in Lua simply by indexing tables with integers. Therefore, arrays do not have a fixed size, but grow as we need. Usually, when we initialize the array we define its size indirectly. For instance, after the following code a = {} -- … Webcheck if a lua table is an array Raw is_array.lua local _cache = {} local function is_array ( t) local count = # t if count == 0 then return false end for i =1 ,count do local v = t [i] if v == nil then return false end t [i] = nil _cache [i] = v end if next (t) then return false end for i =1 ,count do t [i] = _cache [i] _cache [i] = nil end pennsylvania gay campgrounds

Check if table has element (LUA) - snippets.bentasker.co.uk

WebInstead of using regex, the Lua string library has a special set of characters used in syntax matches. Both can be very similar, but Lua pattern matching is more limited and has a different syntax. WebThe basic Lua library provides ipairs, a handy function that allows you to iterate over the elements of an array, following the convention that the array ends at its first nil element. … WebCheck if list contains a value Programming-Idioms This language bar is your friend. Select your favorite languages! Idiom #12 Check if list contains a value Check if the list contains … pennsylvania genealogy death records