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对象的toString应为'[object Object]'而不是'object' #263

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对象的toString应为'[object Object]'而不是'object' #263

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对象的toString应为'[object Object]'而不是'object'
cyan0714 Apr 14, 2023
dcb12f9
修复已知错误
cyan0714 Apr 14, 2023
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4 changes: 2 additions & 2 deletions 04-JavaScript基础/09-数据类型转换.md
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Original file line number Diff line number Diff line change
Expand Up @@ -93,7 +93,7 @@ console.log(a1.toString()); // "qianguyihao"
console.log(a2.toString()); // "29"
console.log(a3.toString()); // "true"
console.log(a4.toString()); // "1,2,3"
console.log(a5.toString()); // "object"
console.log(a5.toString()); // "[object Object]"

// 下面这两个，打印报错
console.log(a6.toString()); // 报错：Uncaught TypeError: Cannot read properties of null
Expand Down Expand Up @@ -287,7 +287,7 @@ parseInt('5'); // 得到的结果是数字 5

（2）如果字符串不是以数字开头，则转换为 NaN。

（3）如果字符串是一个空串或者是一个全是空格的字符串，转换时会报错。
（3）如果字符串是一个空串或者是一个全是空格的字符串，则转换为 NaN。

**情况二：Boolean --> 数字**，结果为：NaN

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