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This help-page, Help:Lua debugging, explains issues of writing Lua script and debugging the source code, to remove errors or improve performance. Because Lua is a "semi-compiled" interpreted language, it does not prescreen for all common syntax errors, nor detect misspelled variables, which are only found at runtime when seeing the " Script ...
Almost any problem which occurs when running a Lua module will be reported as "Script error" during program execution, such as invalid data or a misspelled variable name in the Lua source code.
ZeroBrane Studio is a lightweight open-source Lua IDE with code completion, syntax highlighting, code analyzer, live coding, and debugging support for Lua 5.1, Lua 5.2, Lua 5.3, Lua 5.4, LuaJIT, and other Lua engines.
Help:Lua for beginners; Help:Lua debugging – about debugging Lua modules; Wikipedia:Lua style guide – standards to improve the readability of code through consistency; Module:Sandbox provides a pseudo-namespace for experimenting with Lua modules
This Lua module is used in system messages, and on approximately 21,500,000 pages, or roughly 35% of all pages. Changes to it can cause immediate changes to the Wikipedia user interface. To avoid major disruption and server load, any changes should be tested in the module's /sandbox or /testcases subpages, or in your own module sandbox .
Lua patterns deliberately lack the most complex regular expression constructs (to avoid bloating the Lua code base), where many other computer languages or libraries use a more complete set. Lua patterns are not even a subset of regular expressions, as there are also discrepancies, like Lua using the escape character % instead of \, , and ...
Eliminating errors in the wiki syntax, such as missing close tags or brackets; Checking for accessibility issues, such as small print or heading problems; Correcting, deleting or moving code that does not follow conventions, such as the position of references with respect to punctuation;
This module provides unit tests for other Lua modules. To test a module, you must create a separate test module, usually located at Module:Module name/testcases.The module is tested with the ScribuntoUnit module, which verifies that the operations defined in the test module produce the expected results.