99 lines
2.8 KiB
Markdown
99 lines
2.8 KiB
Markdown
---
|
|
id: bad87fee1348bd9aec908857
|
|
title: 使用註釋來說明代碼
|
|
challengeType: 0
|
|
forumTopicId: 18347
|
|
dashedName: use-comments-to-clarify-code
|
|
---
|
|
|
|
# --description--
|
|
|
|
使用 jQuery 時,修改 HTML 元素時並不需要直接修改 HTML 代碼。
|
|
|
|
必須確保讓每個人都知道不應該直接修改此頁面上的這些代碼。
|
|
|
|
記住,可以在 `<!--` 爲開始,`-->` 爲結束的地方進行評論註釋。
|
|
|
|
請你在 HTML 頂部加如下一段註釋: `Code below this line should not be changed` 。
|
|
|
|
# --hints--
|
|
|
|
應該在 HTML 頂部增加此代碼 `<!--` 以開始註釋。
|
|
|
|
```js
|
|
assert(code.match(/^\s*<!--/));
|
|
```
|
|
|
|
註釋內容應該爲 `Code below this line should not be changed`。
|
|
|
|
```js
|
|
assert(code.match(/<!--(?!(>|->|.*-->.*this line))\s*.*this line.*\s*-->/gi));
|
|
```
|
|
|
|
註釋應該用 `-->` 進行閉合。
|
|
|
|
```js
|
|
assert(code.match(/-->.*\n+.+/g));
|
|
```
|
|
|
|
注意,註釋的開始標籤和閉合標籤數量應該一一對應,保持數量一致。
|
|
|
|
```js
|
|
assert(code.match(/<!--/g).length === code.match(/-->/g).length);
|
|
```
|
|
|
|
# --seed--
|
|
|
|
## --seed-contents--
|
|
|
|
```html
|
|
<div class="container-fluid">
|
|
<h3 class="text-primary text-center">jQuery Playground</h3>
|
|
<div class="row">
|
|
<div class="col-xs-6">
|
|
<h4>#left-well</h4>
|
|
<div class="well" id="left-well">
|
|
<button class="btn btn-default target" id="target1">#target1</button>
|
|
<button class="btn btn-default target" id="target2">#target2</button>
|
|
<button class="btn btn-default target" id="target3">#target3</button>
|
|
</div>
|
|
</div>
|
|
<div class="col-xs-6">
|
|
<h4>#right-well</h4>
|
|
<div class="well" id="right-well">
|
|
<button class="btn btn-default target" id="target4">#target4</button>
|
|
<button class="btn btn-default target" id="target5">#target5</button>
|
|
<button class="btn btn-default target" id="target6">#target6</button>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
```
|
|
|
|
# --solutions--
|
|
|
|
```html
|
|
<!-- Code below this line should not be changed -->
|
|
<div class="container-fluid">
|
|
<h3 class="text-primary text-center">jQuery Playground</h3>
|
|
<div class="row">
|
|
<div class="col-xs-6">
|
|
<h4>#left-well</h4>
|
|
<div class="well" id="left-well">
|
|
<button class="btn btn-default target" id="target1">#target1</button>
|
|
<button class="btn btn-default target" id="target2">#target2</button>
|
|
<button class="btn btn-default target" id="target3">#target3</button>
|
|
</div>
|
|
</div>
|
|
<div class="col-xs-6">
|
|
<h4>#right-well</h4>
|
|
<div class="well" id="right-well">
|
|
<button class="btn btn-default target" id="target4">#target4</button>
|
|
<button class="btn btn-default target" id="target5">#target5</button>
|
|
<button class="btn btn-default target" id="target6">#target6</button>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
```
|