eplace the usage of ìndexOf for includes`

2017-12-11 21:32:47 -04:00
parent d0b6531c45
commit e28bd9a95f
1 changed files with 1 additions and 1 deletions
--- a/README.md
+++ b/README.md
@ -364,7 +364,7 @@ Check if each value has already been added, using `includes()` on the accumulato
 ```js
 var uniqueValues = arr =>
  arr.reduce( (acc, val) => {
-    if(acc.indexOf(val))
+    if(!acc.includes(val))
      acc.push(val);
      return acc;
  }, []);