error
Lua function error Summary Raises an error message Prototype `error (message, level)` Description `Raises an error with the supplied message. Never returns. If a level is supplied the error points to the current function (level 1 or nil), the parent function (level 2) and so on.
    error ("Insufficient funds") --> error raised: "Insufficient funds"
If you are writing a "validation function" that checks things passed to it, you would normally make the level 2, so that the error message points to the line that calls the validator, rather than the validator itself.` See Also ... Topics Lua base functions Lua bc (big number) functions Lua bit manipulation functions Lua coroutine functions Lua debug functions Lua io functions Lua math functions Lua os functions Lua package functions Lua PCRE regular expression functions Lua script extensions Lua string functions Lua table functions Lua utilities Scripting Lua functions assert (Asserts that condition is not nil and not false) collectgarbage (Collects garbage) dofile (Executes a Lua file) gcinfo (Returns amount of dynamic memory in use) getfenv (Returns the current environment table) getmetatable (Returns the metatable for the object) ipairs (Iterates over a numerically keyed table) load (Loads a chunk by calling a function repeatedly) loadfile (Loads a Lua file and parses it) loadlib (Loads a DLL (obsolete in Lua 5.1)) loadstring (Compiles a string of Lua code) module (Creates a Lua module) next (Returns next key / value pair in a table) pairs (Traverse all items in a table) pcall (Calls a function in protected mode) print (Prints its arguments) rawequal (Compares two values for equality without invoking metamethods) rawget (Gets the value of a table item without invoking metamethods) rawset (Sets the value of a table item without invoking metamethods) require (Loads a module) select (Returns items in a list) setfenv (Sets a function's environment) setmetatable (Sets the metatable for a table) tonumber (Converts a string (of the given base) to a number) tostring (Converts its argument to a string) type (Returns the type of a variable) unpack (Unpacks a table into individual items) xpcall (Calls a function with a custom error handler) (Help topic: lua=error) Documentation contents page