fix a small mistake in calling Math.max

bardiarastin · web-flow · commit c42a4a749a51 · 2018-05-08T02:41:04.000+04:30
diff --git a/1-js/06-advanced-functions/02-rest-parameters-spread-operator/article.md b/1-js/06-advanced-functions/02-rest-parameters-spread-operator/article.md
@@ -145,7 +145,7 @@ alert( Math.max(arr) ); // NaN
 */!*
 ```
 
-And surely we can't manually list items in the code `Math.max(arg[0], arg[1], arg[2])`, because we may be unsure how many there are. As our script executes, there could be a lot, or there could be none. And that would get ugly.
+And surely we can't manually list items in the code `Math.max(arr[0], arr[1], arr[2])`, because we may be unsure how many there are. As our script executes, there could be a lot, or there could be none. And that would get ugly.
 
 *Spread operator* to the rescue! It looks similar to rest parameters, also using `...`, but does quite the opposite.
 
