2013年11月20日 · In Lua's case, the language is intended to be an embedded scripting language, so any changes that make the language more complex or potentially make the compiler/runtime even slightly larger or slower may go against this objective.

What does the ~= operator mean in Lua? For example, in the following code: if x ~= params then

Because control structures in Lua only consider nil and false to be false, and anything else to be true, this will always enter the if statement, which is not what you want either. There is no way that you can use binary operators like those provided in programming languages to compare a single variable to a list of values.

It's syntactic sugar: When defining a function, it adds implies a 'self' argument passed to the function; When calling a function, it inserts the left of the colon as the first parameter.

2011年4月3日 · Lua is deliberately lightweight so it does not have a ternary operator. There are a couple of ways to get past this including using the and-or idiom. But I think that is bad for multiple reasons. Mainly because beginners don't understand it though. I suggest using a function:

2017年11月2日 · I have seen the hash character '#' being added to the front of variables a lot in Lua. What does it do? EXAMPLE -- sort AIs in currentlevel table.sort(level.ais, function(a,b) return a.y &l

2024年5月20日 · If you are splitting a string in Lua, you should try the string.gmatch() or string.sub() methods. Use the string.sub() method if you know the index you wish to split the string at, or use the string.gmatch() if you will parse the string to find the location to split the string at. Example using string.gmatch() from Lua 5.1 Reference Manual:

2021年6月24日 · Installing lua system wide. Add lua in the environment variables by adding the path from where it's installed. After doing this you can open PowerShell and enter lua53.exe to open lua. Additional details. Although these is what lua directly offers, there are other third party alternatives of compiling and executing lua code.

The Lua idiom for this case is something like this: function listvalues(s) local t = { } for k,v in ipairs(s) do t[#t+1] = tostring(v) end return table.concat(t,"\n") end By collecting the strings to be concatenated in an array t , the standard library routine table.concat can be used to concatenate them all up (along with a separator string ...

I don't know Lua so there might be syntax errors, but the overall idea is that you use string.sub method to divide your message into 2 parts: the command part and the info part. If the command part equals to "kill/" , then find the player with the name specified in the info part, and kill him!