JavaScript 中的 % 运算符是什么？

Question

我正在尝试破译一段 JS 代码（而（显然）我的 JS 知识是空的）。
下面代码中的 % 运算符是什么？

   m[p1%2][q1] = 0.0;  
   for(j=q1+1; j <= q2; j++)
      m[p1%2][j] = m[p1%2][j-1] + 1;

Answer 1

% 是 remainder operator。它给出除法后的余数。 ^{引用自 MDN}

The remainder operator returns the remainder left over when one operand is divided by a second operand. It always takes the sign of the dividend, not the divisor. It uses a built-in modulo function to produce the result, which is the integer remainder of dividing var1 by var2 — for example — var1 modulo var2.

There is a proposal to get an actual modulo operator in a future version of ECMAScript, the difference being that the modulo operator result would take the sign of the divisor, not the dividend.

Answer 2

% 是模数（或模数？）。它将第一项除以第二项，余数 returns。这对于循环遍历一组数字和许多其他内容很有用。

用法：x % y

示例：

5 % 10; //5
10 % 5; //0
16 % 5; //1

Answer 3

% 是数学运算符，用于模数。简而言之 3 % 2=1 取模运算符returns提醒.

JavaScript 中的 % 运算符是什么？

What is the % operator in JavaScript?

javascript

modulo