Can I check strings equality in lua?

string lua comparison equals
Howard Sun picture Howard Sun · Dec 24, 2014 · Viewed 53.9k times · Source

Just a straight forward beginner question, I am coding Lua stuff for Garrys Mod, learning by reading wiki and other codings.

if (self.Owner:SteamID( ) == "STEAM_0:1:44037488" ) then

the above is the code I want to use, to check to see if the STEAM ID (which I believe is a string) is equal to my exact string.

Is this viable? Or is there another way I should do it?

Answer

lisu picture lisu · Dec 24, 2014

This should work exactly as you expect it to. In lua '==' for string will return true if contents of the strings are equal.

As it was pointed out in the comments, lua strings are interned, which means that any two strings that have the same value are actually the same string.

Related questions

Split string in Lua?

I need to do a simple split of a string, but there doesn't seem to be a function for this, and the manual way I tested didn't seem to work. How would I do it?

Read More
Check if a string isn't nil or empty in Lua

I've some currently some Lua code using the following syntax: if (foo == nil or foo == '') then foo = "some default value" end The goal of the if condition is to test foo is neither an empty string, neither a nil …

Read More
How to check if matching text is found in a string in Lua?

I need to make a conditional that is true if a particular matching text is found at least once in a string of text, e.g.: str = "This is some text containing the word tiger." if string.match(str, "tiger") …

Read More