Oliver Eyton-Williams ee1e8abd87
feat(curriculum): restore seed + solution to Chinese (#40683)
* feat(tools): add seed/solution restore script

* chore(curriculum): remove empty sections' markers

* chore(curriculum): add seed + solution to Chinese

* chore: remove old formatter

* fix: update getChallenges

parse translated challenges separately, without reference to the source

* chore(curriculum): add dashedName to English

* chore(curriculum): add dashedName to Chinese

* refactor: remove unused challenge property 'name'

* fix: relax dashedName requirement

* fix: stray tag

Remove stray `pre` tag from challenge file.

Signed-off-by: nhcarrigan <nhcarrigan@gmail.com>

Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
2021-01-12 19:31:00 -07:00

1.4 KiB
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id, title, challengeType, videoUrl, forumTopicId, dashedName
id title challengeType videoUrl forumTopicId dashedName
cf1111c1c11feddfaeb9bdef 使用 JavaScript 生成随机分数 1 https://scrimba.com/c/cyWJJs3 18185 generate-random-fractions-with-javascript

--description--

随机数非常适合用来创建随机行为。

Math.random()用来生成一个在0(包括 01(不包括 1之间的随机小数因此Math.random()可能返回 0 但绝不会返回 1。

提示
使用赋值运算符存储值这一节讲过,所有函数调用将在return执行之前解析,因此我们可以返回Math.random()函数的值。

--instructions--

更改randomFraction使其返回一个随机数而不是0

--hints--

randomFraction应该返回一个随机数。

assert(typeof randomFraction() === 'number');

randomFraction应该返回一个小数。

assert((randomFraction() + '').match(/\./g));

需要使用Math.random生成随机的小数。

assert(code.match(/Math\.random/g).length >= 0);

--seed--

--after-user-code--

(function(){return randomFraction();})();

--seed-contents--

function randomFraction() {

  // Only change code below this line

  return 0;

  // Only change code above this line
}

--solutions--

function randomFraction() {
  return Math.random();
}