Frei Lua S De Sousa Portuguese Edition

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Frei Lua S De Sousa Portuguese Edition 1

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.

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

Frei Lua S De Sousa Portuguese Edition 3

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.

There is a nice article on lua-users wiki about ternary operator, together with problem explanation and several solutions.

Inline conditions in Lua (a == b ? "yes" : "no")? - Stack Overflow

Frei Lua S De Sousa Portuguese Edition 6

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 < b...

I've tried different formats but my application keeps crashing. Update: To anyone with the same sort of doubts about lua's syntax, i'd recommend checking the documentation here and keeping it handy. It'll be useful while learning.

Frei Lua S De Sousa Portuguese Edition 8

function - Difference between . and : in Lua - Stack Overflow