字符串的余数/模数是一个数字 [英] Remainder/Modulus of string is a number

问题描述

为什么这可能?

console.log('13' % 2);

1

我假设 JavaScript 只是自己转换字符串.如果您提供有关此行为的任何信息，我将不胜感激.

I assume JavaScript just converts the string on its own. I would appreciate any info on this behaviour.

推荐答案

作为起点:http://ecma-international.org/ecma-262/5.1/#sec-11.5

ToNumber 操作在左参数上执行(这导致左参数被视为数字，如 http://ecma-international.org/ecma-262/5.1/#sec-9.3.1)

The ToNumber operation is performed on the left argument (which results in the left argument being treated as the number, as explained in http://ecma-international.org/ecma-262/5.1/#sec-9.3.1)

这篇关于字符串的余数/模数是一个数字的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！