Echo server: Difference between revisions

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 =={{header|Lua}}==
 {{libheader|LuaSocket}}
-This implementation doesn't rely on coroutines because they're an additional (often confusing) notion that could make the example needlessly hard to understand.  Instead I've used a table of not-quite-non-blocking sockets (they block for one microsecond), which I loop through, checking on whether each one has either a line to echo or an error to warrant deletion.
+This implementation doesn't rely on coroutines because they're an additional (often confusing) notion that could make the example needlessly hard to understand.  Instead it uses a table of not-quite-non-blocking socket client objects (they block for one microsecond), which is iterated over to check on whether each one has either a line to echo or an error to warrant deletion.
 <lang Lua>require("socket")
@@ Line 1,183: / Line 1,183: @@
         return err
     end
-    return false
+    return nil
 end