Merge pull request #760 from totize/patch-2

Update article.md

1-js/06-advanced-functions/06-function-object/article.md

@@ -153,7 +153,7 @@ alert( `Called ${sayHi.counter} times` ); // Called 2 times
 ```warn header="A property is not a variable"
 A property assigned to a function like `sayHi.counter = 0` does *not* define a local variable `counter` inside it. In other words, a property `counter` and a variable `let counter` are two unrelated things.
 
-We can treat a function as an object, store properties in it, but that has no effect on its execution. Variables never use function properties and vice versa. These are just parallel words.
+We can treat a function as an object, store properties in it, but that has no effect on its execution. Variables never use function properties and vice versa. These are just parallel worlds.
 ```
 
 Function properties can replace closures sometimes. For instance, we can rewrite the counter function example from the chapter <info:closure> to use a function property: