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

1.6 KiB
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id, title, challengeType, videoUrl, forumTopicId, dashedName
id title challengeType videoUrl forumTopicId dashedName
56533eb9ac21ba0edf2244b5 转义字符串中的引号 1 https://scrimba.com/c/c2QvgSr 17568 escaping-literal-quotes-in-strings

--description--

定义一个字符串必须要用单引号或双引号来包裹它。那么当你的字符串里面包含:"或者'时该怎么办呢?

在 JavaScript 中,你可以通过在引号前面使用反斜杠\)来转义引号。

var sampleStr = "Alan said, \"Peter is learning JavaScript\".";

有了转义符号JavaScript 就知道这个单引号或双引号并不是字符串的结尾,而是字符串内的字符。所以,上面的字符串打印到控制台的结果为:

Alan said, "Peter is learning JavaScript".

--instructions--

使用反斜杠将一个字符串赋值给变量myStr,打印到控制台,输出为:

I am a "double quoted" string inside "double quotes".

--hints--

你的代码中应该包含两个双引号 (") 以及四个转义的双引 (\")。

assert(code.match(/\\"/g).length === 4 && code.match(/[^\\]"/g).length === 2);

变量 myStr 应该包含字符串I am a "double quoted" string inside "double quotes".

assert(myStr === 'I am a "double quoted" string inside "double quotes".');

--seed--

--after-user-code--

(function(){
  if(typeof myStr === 'string') {
    console.log("myStr = \"" + myStr + "\"");
  } else {
    console.log("myStr is undefined");
  }
})();

--seed-contents--

var myStr = ""; // Change this line

--solutions--

var myStr = "I am a \"double quoted\" string inside \"double quotes\".";