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It also returns nil values as nil, to allow for distinctions between nil and false. The module also accepts other Lua structures as input, i.e. booleans, numbers, tables, and functions. If it is passed input that it does not recognise as boolean or nil, it is possible to specify a default value to return.
Often "global" is mentioned in these errors because you didn't have a local statement for the nil variable. string expected, got function. Some important things like mw.ustring.gmatch actually return functions, not strings - see Functions below. no such module. You #invoked a module that didn't exist — or wrote #invoke:Module:x instead of # ...
Note: the above functions will fail if passed input that is not of type string or nil. This might be the case if you use the getArgs function in the main function of your module, and that function is called by another Lua module. In this case, you will need to check the type of your input.
C: String.format(formatstring, items) Java: C: String.Format(formatstring, items) VB .NET, C#, F#.NET (format formatstring items) Scheme (SRFI 28) Lisp (format nil formatstring items) Common Lisp: Lisp (format formatstring items) Clojure: Lisp formatstring-f items: Windows PowerShell.NET [NSString stringWithFormat:formatstring, items] Objective ...
reserved_debug - nonzero value forces display of a not particularly useful debug text; The functioncall is written as some.function.name(a,b,c) where some.function.name means something in the Extension:Scribunto/Lua reference manual and a,b,c are the arbitrary variable names you've chosen.
This module provides utilities for declaring classes in Lua code. It creates global variables, so must be called before require ( 'strict' ) if that is used. The above documentation is transcluded from Module:Lua class/doc .
The string-search functions in Lua script can run extremely fast, comparing millions of characters per second. For example, a search of a 40,000-character article text, for 99 separate words (passed as 99 parameters in a template), ran within one second of Lua CPU clock time.
and trying to use a plus-sign "+" might pass during the pre-compile of edit-save but hit "Script error" when that portion of the Lua script is executed. Invalid function name: len = string.long(my_str) - The string-length operator is hash mark '#' (as in: #my_str), or use function 'string.len(my_str)' but trying to use unknown function 'string ...