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id	title	challengeType	videoUrl	forumTopicId	dashedName
587d78aa367417b2b2512aec	HTML ドキュメントのヘッダーと本文を定義する	0	https://scrimba.com/p/pVMPUv/cra9bfP	301096	define-the-head-and-body-of-an-html-document

--description--

head 要素と body 要素で、html タグ内にもう一段階の構造を追加することができます。あなたのページに関する情報のマークアップは head タグの中に入ります。そして、ページのコンテンツ (ユーザーに表示されるもの) のマークアップは body タグの中に入ります。

メタデータ要素、例えば link, meta, title, style などは、一般的に head 要素に入れます。

こちらがページのレイアウトの例です:

<!DOCTYPE html>
<html>
  <head>
   <meta charset="utf-8">
   <title>Example title</title>
  </head>
  <body>
    <div>
    </div>
  </body>
</html>

--instructions--

マークアップを編集して head と body を作りましょう。 head 要素には title だけを含め、body 要素には h1 と p だけを含めるようにしてください。

--hints--

ページに head 要素が 1 つだけあるようにしてください。

const headElems = code.replace(/\n/g, '').match(/\<head\s*>.*?\<\/head\s*>/g);
assert(headElems && headElems.length === 1);

ページに body 要素が 1 つだけあるようにしてください。

const bodyElems = code.replace(/\n/g, '').match(/<body\s*>.*?<\/body\s*>/g);
assert(bodyElems && bodyElems.length === 1);

head 要素は、html 要素の子要素である必要があります。

const htmlChildren = code
  .replace(/\n/g, '')
  .match(/<html\s*>(?<children>.*)<\/html\s*>/);
let foundHead;
if (htmlChildren) {
  const { children } = htmlChildren.groups;

  foundHead = children.match(/<head\s*>.*<\/head\s*>/);
}
assert(foundHead);

body 要素は、html 要素の子要素である必要があります。

const htmlChildren = code
  .replace(/\n/g, '')
  .match(/<html\s*>(?<children>.*?)<\/html\s*>/);
let foundBody;
if (htmlChildren) {
  const { children } = htmlChildren.groups;
  foundBody = children.match(/<body\s*>.*<\/body\s*>/);
}
assert(foundBody);

head 要素は、title 要素を囲む必要があります。

const headChildren = code
  .replace(/\n/g, '')
  .match(/<head\s*>(?<children>.*?)<\/head\s*>/);
let foundTitle;
if (headChildren) {
  const { children } = headChildren.groups;
  foundTitle = children.match(/<title\s*>.*?<\/title\s*>/);
}
assert(foundTitle);

body 要素は h1 と p 要素の両方を囲む必要があります。

const bodyChildren = code
  .replace(/\n/g, '')
  .match(/<body\s*>(?<children>.*?)<\/body\s*>/);
let foundElems;
if (bodyChildren) {
  const { children } = bodyChildren.groups;
  const h1s = children.match(/<h1\s*>.*<\/h1\s*>/g);
  const ps = children.match(/<p\s*>.*<\/p\s*>/g);
  const numH1s = h1s ? h1s.length : 0;
  const numPs = ps ? ps.length : 0;
  foundElems = numH1s === 1 && numPs === 1;
}
assert(foundElems);

--seed--

--seed-contents--

<!DOCTYPE html>
<html>
  <title>The best page ever</title>

  <h1>The best page ever</h1>
  <p>Cat ipsum dolor sit amet, jump launch to pounce upon little yarn mouse, bare fangs at toy run hide in litter box until treats are fed. Go into a room to decide you didn't want to be in there anyway. I like big cats and i can not lie kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Meow i could pee on this if i had the energy for slap owner's face at 5am until human fills food dish yet scamper. Knock dish off table head butt cant eat out of my own dish scratch the furniture. Make meme, make cute face. Sleep in the bathroom sink chase laser but pee in the shoe. Paw at your fat belly licks your face and eat grass, throw it back up kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>

</html>

--solutions--

<!DOCTYPE html>
<html>
 <head>
  <title>The best page ever</title>
 </head>
 <body>
  <h1>The best page ever</h1>
  <p>Cat ipsum dolor sit amet, jump launch to pounce upon little yarn mouse, bare fangs at toy run hide in litter box until treats are fed. Go into a room to decide you didn't want to be in there anyway. I like big cats and i can not lie kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff. Meow i could pee on this if i had the energy for slap owner's face at 5am until human fills food dish yet scamper. Knock dish off table head butt cant eat out of my own dish scratch the furniture. Make meme, make cute face. Sleep in the bathroom sink chase laser but pee in the shoe. Paw at your fat belly licks your face and eat grass, throw it back up kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
 </body>
</html>

5.2 KiB Raw Blame History