Select find all in Lua

In Lua, you can find all elements of an array satisfying a condition by using a loop, and the table library's functions.

Here's an example code that shows how to find all elements of an array that are greater than a certain number:

-- Sample array
local arr = {5, 10, 15, 20, 25}
-- Function to find all elements greater than a number

function findElementsGreaterThan(arr, num)

    local result = {}

    for i, v in ipairs(arr) do

        if v > num then

            table.insert(result, v)

        end

    end

    return result

end
-- Call the function and print the result

local elements = findElementsGreaterThan(arr, 15)

print(table.concat(elements, ", "))  -- Output: 20, 25

In this example, the findElementsGreaterThan() function takes the array and a number as inputs, and returns a new array with all elements greater than the given number. It uses a for loop to traverse the elements of the input array, and the table.insert() function to add the matching elements to the result array. Finally, the table.concat() function is used to convert the result array into a string that can be printed.