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Lua Unofficial FAQ (uFAQ)
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| Anchor | Type | Juice |
|---|---|---|
| 1 Language | Internal | Passing Juice |
| 1.1 Where to start? | Internal | Passing Juice |
| 1.2 Suitability as a first programming language? | Internal | Passing Juice |
| 1.3 Suitability as a second programming language? | Internal | Passing Juice |
| 1.4 Any good editors and debuggers? | Internal | Passing Juice |
| 1.5 Lua seems very verbose. Why isn't it like C? | Internal | Passing Juice |
| 1.5.1 Why do Lua arrays count from one? | Internal | Passing Juice |
| 1.5.2 Can I use a conditional expression like "x ? y : b" in C? | Internal | Passing Juice |
| 1.6 How can undefined variable access be caught in Lua? | Internal | Passing Juice |
| 1.7 Does Lua support Unicode? | Internal | Passing Juice |
| 1.8 Optimization tips? | Internal | Passing Juice |
| 1.9 When do I need to worry about memory? | Internal | Passing Juice |
| 1.10 What is the difference between pairs and ipairs? | Internal | Passing Juice |
| 1.11 Why have a special operator for string concatenation? | Internal | Passing Juice |
| 1.12 I have seen Lua code with functions like strfind; why doesn't it work? | Internal | Passing Juice |
| 1.13 Why doesn't 'for k,v in t do' work anymore? | Internal | Passing Juice |
| 1.14 How can one put a nil value in an array? | Internal | Passing Juice |
| 1.15 How can I dump out a table? | Internal | Passing Juice |
| 1.16 Why does print 'hello' work, and not print 42? | Internal | Passing Juice |
| 1.17 What is the difference between a.f(x) and a:f(x)? | Internal | Passing Juice |
| 1.18 How are variables scoped? | Internal | Passing Juice |
| 1.18.1 Why aren't variables locally scoped by default? | Internal | Passing Juice |
| 1.19 Difference between require and dofile? | Internal | Passing Juice |
| 1.20 How to explicitly load a binary module? | Internal | Passing Juice |
| 1.21 What are function environments? | Internal | Passing Juice |
| 1.22 Can functions and operators be overloaded? | Internal | Passing Juice |
| 1.23 How to make functions receive a variable number of arguments? | Internal | Passing Juice |
| 1.24 How to return several values from a function? | Internal | Passing Juice |
| 1.25 Can you pass named parameters to a function? | Internal | Passing Juice |
| 1.26 Why is there no continue statement? | Internal | Passing Juice |
| 1.27 Is there any exception handling? | Internal | Passing Juice |
| 1.28 No classes? How do you guys survive? | Internal | Passing Juice |
| 1.28.1 What are closures? | Internal | Passing Juice |
| 1.29 Is there string Interpolation, for example in "$VAR is expanded"? | Internal | Passing Juice |
| 1.30 What are optimised tail calls useful for? | Internal | Passing Juice |
| 1.31 Packaging as a stand-alone application? | Internal | Passing Juice |
| 1.32 How do I load and run (potentially untrusted) Lua code? | Internal | Passing Juice |
| 1.33 Embedding Lua in an application? | Internal | Passing Juice |
| 1.34 Documenting Lua code? | Internal | Passing Juice |
| 1.35 How to check function argument types? | Internal | Passing Juice |
| 1.36 How to end script execution gracefully? | Internal | Passing Juice |
| 1.37 How does module() work? | Internal | Passing Juice |
| 1.37.1 Criticism of module() | Internal | Passing Juice |
| 1.37.2 Life after module()? | Internal | Passing Juice |
| 1.38 What are weak tables? | Internal | Passing Juice |
| 1.39 What is the difference between the various ways to quote strings? | Internal | Passing Juice |
| 1.40 Compatibility issues between Windows and Unix? | Internal | Passing Juice |
| 2 Data | Internal | Passing Juice |
| 2.1 How do I access command-line arguments? | Internal | Passing Juice |
| 2.2 How to Parse command-Line arguments? | Internal | Passing Juice |
| 2.3 How to read all the lines in a file? | Internal | Passing Juice |
| 2.4 How to read numbers? | Internal | Passing Juice |
| 2.5 How to format text and numbers nicely? | Internal | Passing Juice |
| 2.6 How to read CSV data? | Internal | Passing Juice |
| 2.7 How to work with binary data? | Internal | Passing Juice |
| 2.8 Are there regular expression libraries? | Internal | Passing Juice |
| 2.9 Parsing complex structured text data? | Internal | Passing Juice |
| 2.10 Are there mathematical libraries like complex numbers, higher-precision arithmetic, matrices, etc? | Internal | Passing Juice |
| 2.11 How to parse XML documents? | Internal | Passing Juice |
| 2.12 How to interface with databases? | Internal | Passing Juice |
| 2.13 Persisting program state? | Internal | Passing Juice |
| 3 Operating System | Internal | Passing Juice |
| 3.1 How to get the current date and time? | Internal | Passing Juice |
| 3.2 How to execute an external command? | Internal | Passing Juice |
| 3.3 How to make a script pause for a few seconds? | Internal | Passing Juice |
| 3.4 How to list the contents of a directory? Ask for file properties? | Internal | Passing Juice |
| 3.5 Running a program as a Service/Daemon? | Internal | Passing Juice |
| 3.6 Has Lua got threads? | Internal | Passing Juice |
| 3.7 How to access the Windows registry? | Internal | Passing Juice |
| 3.8 Sending an email? | Internal | Passing Juice |
| 3.9 Can Lua be used as a Web scripting language? | Internal | Passing Juice |
| 3.10 Measuring elapsed time in a program? | Internal | Passing Juice |
| 4 Libraries | Internal | Passing Juice |
| 4.1 It's a compact language, but I need more libraries. Where to find them? | Internal | Passing Juice |
| 4.2 What GUI toolkits are available? | Internal | Passing Juice |
| 4.3 Rendering graphics and plots to a file? | Internal | Passing Juice |
| 4.4 How to interface to my C/C++ libraries? | Internal | Passing Juice |
| 4.5 Is there a foreign function Interface (FFI)? | Internal | Passing Juice |
| 4.5.1 LuaJIT FFI | Internal | Passing Juice |
| 5 Hardware | Internal | Passing Juice |
| 5.1 Smart Phones | Internal | Passing Juice |
| 5.1.1 Google Android? | Internal | Passing Juice |
| 5.1.2 IPhone Support? | Internal | Passing Juice |
| 5.1.3 Java-based Phones? | Internal | Passing Juice |
| 5.2 What are the minimum requirements for an embedded device? | Internal | Passing Juice |
| 6 Interoperability | Internal | Passing Juice |
| 6.1 LuaJIT is significantly faster than vanilla Lua. What's the catch? | Internal | Passing Juice |
| 6.2 Using Lua with .NET, Java or Objective-C? | Internal | Passing Juice |
| 6.2.1 Lua with Java | Internal | Passing Juice |
| 6.2.2 Lua with .NET | Internal | Passing Juice |
| 6.2.3 Lua with Objective-C | Internal | Passing Juice |
| 6.3 I miss all those Python/Perl libraries; can I access them? | Internal | Passing Juice |
| 6.4 Can Lua interoperate with CORBA or Web Services? | Internal | Passing Juice |
| 7 C API | Internal | Passing Juice |
| 7.1 How do I traverse a Lua table? | Internal | Passing Juice |
| 7.2 How would I save a Lua table or a function for later use? | Internal | Passing Juice |
| 7.3 How can I create a multi-dimensional table in C? | Internal | Passing Juice |
| 7.4 Can I use C++ exceptions? | Internal | Passing Juice |
| 7.5 How to bind a C++ class to Lua? | Internal | Passing Juice |
| 7.6 What's the difference between the lua and the luaL functions? | Internal | Passing Juice |
| 7.7 What am I allowed to do with the Lua stack and its contents in my C functions? | Internal | Passing Juice |
| 7.8 What is the difference between userdata and light userdata? | Internal | Passing Juice |
| 8 Lua 5.2 | Internal | Passing Juice |
| 8.1 What Lua 5.1 code breaks in Lua 5.2? | Internal | Passing Juice |
| 8.1.1 Arg for variadic functions | Internal | Passing Juice |
| 8.1.2 Must explicitly require debug library | Internal | Passing Juice |
| 8.1.3 unpack moved to table.unpack | Internal | Passing Juice |
| 8.1.4 setfenv/getfenv deprecated | Internal | Passing Juice |
| 8.1.5 module deprecated | Internal | Passing Juice |
| 8.1.6 newproxy removed. | Internal | Passing Juice |
| 8.2 What are the new Lua 5.2 features? | Internal | Passing Juice |
| 8.2.1 _ENV and Lexical Scoping | Internal | Passing Juice |
| 8.2.2 Bit Operations Library | Internal | Passing Juice |
| 8.2.3 Hexadecimal escapes like \xFF allowed in strings | Internal | Passing Juice |
| 8.2.4 Frontier Pattern now official | Internal | Passing Juice |
| 8.2.5 Tables respect __len metamethod | Internal | Passing Juice |
| 8.2.7 package.searchpath | Internal | Passing Juice |
| 8.2.8 Can get exit status from io.popen | Internal | Passing Juice |
| 8.2.9 Yieldable pcall/metamethods | Internal | Passing Juice |
| 8.2.10 table.pack | Internal | Passing Juice |
| 8.2.11 Ephemeron tables | Internal | Passing Juice |
| 8.2.12 Light C functions | Internal | Passing Juice |
| 8.2.13 Emergency garbage collection | Internal | Passing Juice |
| 8.2.14 os.execute changes | Internal | Passing Juice |
| 8.2.15 The goto statement | Internal | Passing Juice |
| Creative Commons License | External | Passing Juice |
| lua.org | External | Passing Juice |
| here | External | Passing Juice |
| Lua Wiki FAQ | External | Passing Juice |
| Lua User's Wiki | External | Passing Juice |
| here | External | Passing Juice |
| Programming in Lua | External | Passing Juice |
| common gotchas | Internal | Passing Juice |
| read the manual | External | Passing Juice |
| comparisons | External | Passing Juice |
| glue language | External | Passing Juice |
| Ousterhout's Dichotomy | External | Passing Juice |
| LuaEditorSupport | External | Passing Juice |
| XCode | External | Passing Juice |
| SciTE | External | Passing Juice |
| Lua for Windows | External | Passing Juice |
| scriptable | External | Passing Juice |
| Lua plugin | External | Passing Juice |
| Squirrel | External | Passing Juice |
| count from one | External | Passing Juice |
| The Evolution of Lua | External | Passing Juice |
| approaches | External | Passing Juice |
| lua-checker | External | Passing Juice |
| LuaInspect | External | Passing Juice |
| vim | External | Passing Juice |
| Yes and No | External | Passing Juice |
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| have to worry | Internal | Passing Juice |
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| problem | External | Passing Juice |
| closures | External | Passing Juice |
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| and more | External | Passing Juice |
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Keywords Cloud
end return code module local table function functions lua how
Keywords Consistency
| Keyword | Content | Website Title | Keywords | Website Description | Headings |
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| lua | 342 |  |
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| function | 208 | |
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| end | 175 | |
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| return | 111 | |
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| table | 106 | |
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Url
Domain : luafaq.org
Length : 10
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