范围错误：基数必须是整数

¥Message

RangeError: toString() radix argument must be between 2 and 36 (V8-based & Safari)
RangeError: radix must be an integer at least 2 and no greater than 36 (Firefox)

¥Error type

¥What went wrong?

指定了 Number.prototype.toString() 或 BigInt.prototype.toString() 方法的可选 radix 参数。它的值必须是 2 到 36 之间的整数（数字），指定用于表示数值的数字系统的基数。例如，十进制（以 10 为基数）数字 169 以十六进制（以 16 为基数）表示为 A9。

¥The optional radix parameter of the Number.prototype.toString() or the BigInt.prototype.toString() method was specified. Its value must be an integer (a number) between 2 and 36, specifying the base of the number system to be used for representing numeric values. For example, the decimal (base 10) number 169 is represented in hexadecimal (base 16) as A9.

为什么这个参数的值限制为 36？大于 10 的基数使用字母字符作为数字；因此，基数不能大于 36，因为拉丁字母（英语和许多其他语言使用的）只有 26 个字符。

¥Why is this parameter's value limited to 36? A radix that is larger than 10 uses alphabetical characters as digits; therefore, the radix can't be larger than 36, since the Latin alphabet (used by English and many other languages) only has 26 characters.

最常见的基数：

¥The most common radixes:

• 2 代表 二进制数，
• 8 代表 八进制数，
• 小数 为 10，
• 十六进制数 为 16。

¥Examples

¥Invalid cases

(42).toString(0);
(42).toString(1);
(42).toString(37);
(42).toString(150);
// You cannot use a string like this for formatting:
(12071989).toString("MM-dd-yyyy");

¥Valid cases

(42).toString(2); // "101010" (binary)
(13).toString(8); // "15" (octal)
(0x42).toString(10); // "66" (decimal)
(100000).toString(16); // "186a0" (hexadecimal)

¥See also

• Number.prototype.toString()
• BigInt.prototype.toString()