typo

Author: yofriadi

1-js/05-data-types/04-array/article.md

@@ -421,7 +421,7 @@ alert( [1] + 1 ); // "11"
 alert( [1,2] + 1 ); // "1,21"
 ```
 
-Arrays do not have `Symbol.toPrimitive`, neither a viable `valueOf`, they implement only `toString` conversion, so here `[]` becomes an empty string, `[1]` becomes `"1"` and `[1,2]` becomes `"1,2".
+Arrays do not have `Symbol.toPrimitive`, neither a viable `valueOf`, they implement only `toString` conversion, so here `[]` becomes an empty string, `[1]` becomes `"1"` and `[1,2]` becomes `"1,2"`.
 
 When the binary plus `"+"` operator adds something to a string, it converts it to a string as well, so the next step looks like this: