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@ -292,7 +292,7 @@ console.log(entries.next().value); // [2, 'c']
## 数组实例的includes() ## 数组实例的includes()
`Array.protypeto.includes`方法返回一个布尔值，表示某个数组是否包含给定的值，与字符串的`includes`方法类似。该方法属于ES7，但Babel转码器已经支持。 `Array.prototype.includes`方法返回一个布尔值，表示某个数组是否包含给定的值，与字符串的`includes`方法类似。该方法属于ES7，但Babel转码器已经支持。
```javascript ```javascript
[1, 2, 3].includes(2); // true [1, 2, 3].includes(2); // true