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Brent Guffens 2018-01-22 13:07:58 +01:00 • committed by GitHub
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1-js/05-data-types/05-array-methods/article.md
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@ -231,7 +231,7 @@ Note that the methods use `===` comparison. So, if we look for `false`, it finds
If we want to check for inclusion, and don't want to know the exact index, then `arr.includes` is preferred.
Also, a very minor difference of `include` is that it correctly handles `NaN`, unlike `indexOf/lastIndexOf`:
Also, a very minor difference of `includes` is that it correctly handles `NaN`, unlike `indexOf/lastIndexOf`:
```js run
const arr = [NaN];