LUA Utility Functions - Revision history

SkyCorp at 05:15, 18 July 2023

2023-07-18T05:15:59Z

2017-12-21T05:30:36Z

← Older revision		Revision as of 05:30, 21 December 2017
Line 21:		Line 21:

	if key == "__metatable" then		if key == "__metatable" then
	-- do nothing, metatable is handled separately ~~(how to make lua not complain about empty if's?)~~		-- do nothing, metatable is handled separately
	elseif type(value) == "table" then		elseif type(value) == "table" then
	target[key] = clone(value)		target[key] = clone(value)

2017-12-21T05:30:07Z

← Older revision		Revision as of 05:30, 21 December 2017
Line 1:		Line 1:
	Useful functions		Useful functions

			== Clone / Deep Copy ==
			Useful for making a copy of the object. See the OOP example object for it in action.

			<syntaxhighlight lang="lua">
			function clone (t) -- deep-copy a table
			if type(t) ~= "table" then return t end
			local meta = getmetatable(t)
			local target = {}

			local keys = table.keys(t);

			io.write("Keys array is: " .. type(keys) .. "\n");
			io.write("Keys length is: " .. #keys .. "\n");

			for i=1, #keys do
			local key = keys[i];
			local value = t[key];
			io.write("Key: " .. key .. "\n");

			if key == "__metatable" then
			-- do nothing, metatable is handled separately (how to make lua not complain about empty if's?)
			elseif type(value) == "table" then
			target[key] = clone(value)
			else
			target[key] = value
			end
			end
			setmetatable(target, meta)

			return target
			end
			</syntaxhighlight>

2017-12-21T05:28:04Z

Created page with "Useful functions"

New page

Useful functions