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freeCodeCamp/curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/finding-a-remainder-in-javascript.md
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id, title, challengeType, videoUrl, forumTopicId, dashedName
id title challengeType videoUrl forumTopicId dashedName
56533eb9ac21ba0edf2244ae 求余运算 1 https://scrimba.com/c/cWP24Ub 18184 finding-a-remainder-in-javascript

--description--

remainder 求余运算符 % 返回两个数相除得到的余数

示例

5 % 2 = 1
5 / 2 = 2 remainder 1
2 * 2 = 4
5 - 4 = 1

Usage
In mathematics, a number can be checked to be even or odd by checking the remainder of the division of the number by 2. Even numbers have a remainder of 0, while odd numbers a remainder of 1.

17 % 2 = 1
48 % 2 = 0

提示余数运算符(remainder)有时被错误地称为“模数”运算符。 它与模数非常相似,但不能用于负数的运算。

--instructions--

使用 remainder %)运算符,计算 11 除以 3 的余数,并把余数赋给变量 remainder

--hints--

变量 remainder 应该被初始化。

assert(/(const|let|var)\s+?remainder/.test(code));

remainder 的值应该等于 2

assert(remainder === 2);

你应该使用 % 运算符。

assert(/\s+?remainder\s*?=\s*?.*%.*;?/.test(code));

--seed--

--after-user-code--

(function (y) {
  return 'remainder = ' + y;
})(remainder);

--seed-contents--

const remainder = 0;

--solutions--

const remainder = 11 % 3;