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docs(typescript): update article: basic-types #38

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2 changes: 1 addition & 1 deletion docs/frontend-knowledge/typescript/basic-types.md
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Expand Up @@ -84,7 +84,7 @@ const arr2: Array<string> = [];

### 元组

在某些情况下，使用元组（Tuple）来代替数组要更加妥当，比如一个数组中只存放固定长度的变量，但我们进行了超出长度的访问。如果是数组，会抛出错误；使用元素的话，能在越界访问时给出类型报错：
在某些情况下，使用元组（Tuple）来代替数组要更加妥当，比如一个数组中只存放固定长度的变量，但我们进行了超出长度的访问。如果是数组，会抛出错误；使用元组的话，能在越界访问时给出类型报错：

```typescript
// 使用数组，运行时报错
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