23 lines
593 B
Markdown
23 lines
593 B
Markdown
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---
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title: Remove Items Using splice()
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localeTitle: 使用splice（）删除项目
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---
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## 使用splice（）删除项目
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* 必须在`arr`数组上调用`splice()`函数，以便从数组的中心删除1个或多个元素。
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* 数组`arr`目前的`arr`值为16.只需删除返回10所需的任意数量的变量。
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## 解：
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```javascript
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function sumOfTen(arr) {
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// change code below this line
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arr.splice(1,2);
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// change code above this line
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return arr.reduce((a, b) => a + b);
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}
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// do not change code below this line
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console.log(sumOfTen([2, 5, 1, 5, 2, 1]));
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```
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