HackMD 相容 Markdown 測試

2000-01-01

HackMD 相容 Markdown 測試

註：以下的內容取自 HackMD Features 頁，用以比較 markdown-it 渲染成果

:arrow_right: Check the source of this note :arrow_left:

Introduction

HackMD is a realtime, multi-platform collaborative markdown knowledge base. You can write notes with other people on your desktop, tablet or even on the phone.

Please report new issues in GitHub. If you need instant help, please send us a Facebook message. Thank you very much!

Workspace

Modes

Desktop & Tablet

Edit: See only the editor. View: See only the result. Both: See both in split view.

Mobile

View: See only the result. Edit: See only the editor.

Image Upload:

You can upload an image simply by clicking on the camera button . Alternatively, you can drag-n-drop an image into the editor. Even pasting images is possible! This will automatically upload the image to imgur, nothing to worry. :tada:

:::info :bulb: Hint: In the private team plan, the image will be uploaded to a private S3 storage and only accessible through the note. :::

Press the share button on the top right of the menu and click Copy button to copy the note URL link to your clipboard.

To publish and customize the note URL with permalink, please read How to Publish a Note with Permalink.

Save a Note:

Currently, you can save to Dropbox , Google Drive, Gist or save an .md file and .html locally.

Import Notes:

Similarly to the save feature, you can also import an .md or .html file from Dropbox , Google Drive, Gist or import content from your clipboard , and that can parse some HTML which might be useful :smiley:

Permissions:

It is possible to change permissions to a note through the button on the share button on the top right of the menu, click the button and you will see the Sharing menu.

For read and write permissions, you can either choose: Owners, Signed-in users or Everyone.

For commenting permission, please click More in the sharing menu and choose either: Forbidden, Owners, Signed-in users or Everyone. You even can disable the commenting feature through the toggle to the right of the commenting label.

Only the owners of the note can change above permissions.

To invite specific user to a note, please read Invite Others to a Private Note.

Embed a Note:

Notes can be embedded using iframe as follows:

<iframe width="100%" height="500" src="https://hackmd.io/features" frameborder="0"></iframe>

Or you can use embed syntax to include a note seamlessly, please read Embedding another note.

Slide Mode:

You can use a special syntax to organize your note into slides. After that, you can use the Slide Mode to make a presentation. Visit the above link for details.

Book Mode:

You can make your notes into a book. List your links in order or nest them. Then use the Book Mode to make a collection. Visit the above link for details.

View

Header link

Every header will automatically add a url link on the left side. You can hover and click to anchor on it.

Edit:

Shortcut Keys:

Just like Sublime text, which is pretty quick and convenient.

For more infomation, see here.

Auto-Complete:

This editor provides full auto-complete hints in markdown.

Emojis: type : to show hints.
Code blocks: type ``` and plus a character to show hint. ```
Headers: type # to show hint.
Referrals: type [] to show hint.
Externals: type {} to show hint.
Images: type ! to show hint.

Title:

This will take the first level 1 header as the note title.

YAML Metadata

You can provide advanced note information to set the browser behavior (visit above link for details):

title: set note title
description: set note description
image: set note default image (for link preview)
tags: set note tags
robots: set web robots meta
lang: set browser language
dir: set text direction
breaks: set to use line breaks
GA: set to use Google Analytics
disqus: set to use Disqus
slideOptions: setup slide mode options

Emoji

You can type any emoji like this :smile: :smiley: :cry: :wink:

See full emoji list here.

ToDo List:

ToDos
- Buy some salad
- Brush teeth
- Drink some water

Code Block:

We support many programming languages, use the auto complete function to see the entire list.

var s = "JavaScript syntax highlighting";
alert(s);
function $initHighlight(block, cls) {
  try {
    if (cls.search(/\bno\-highlight\b/) != -1)
      return process(block, true, 0x0F) +
             ' class=""';
  } catch (e) {
    /* handle exception */
  }
  for (var i = 0 / 2; i < classes.length; i++) {
    if (checkCondition(classes[i]) === undefined)
      return /\d+[\s/]/g;
  }
}

If you want line numbers, type = after specifying the code block languages. Also, you can specify the start line number. Like below, the line number starts from 101:

var s = "JavaScript syntax highlighting";
alert(s);
function $initHighlight(block, cls) {
  try {
    if (cls.search(/\bno\-highlight\b/) != -1)
      return process(block, true, 0x0F) +
             ' class=""';
  } catch (e) {
    /* handle exception */
  }
  for (var i = 0 / 2; i < classes.length; i++) {
    if (checkCondition(classes[i]) === undefined)
      return /\d+[\s/]/g;
  }
}

Or you might want to continue the previous code block’s line number, use =+

var s = "JavaScript syntax highlighting";
alert(s);

Sometimes you have a super long text without breaks. It’s time to use ! to wrap your code.

When you’re a carpenter making a beautiful chest of drawers, you’re not going to use a piece of plywood on the back.

Blockquote Tags:

Using the syntax below to specifiy your name, time and color to vary the blockquotes. [name=ChengHan Wu] [time=Sun, Jun 28, 2015 9:59 PM] [color=#907bf7]
Even support the nest blockquotes! [name=ChengHan Wu] [time=Sun, Jun 28, 2015 10:00 PM] [color=red]

Render CSV as table

You can use write csv in the codeblock:

```csvpreview {header="true"}
firstName,lastName,email,phoneNumber
John,Doe,john@doe.com,0123456789
Jane,Doe,jane@doe.com,9876543210
James,Bond,james.bond@mi6.co.uk,0612345678
```

which rendered to:

firstName,lastName,email,phoneNumber
John,Doe,john@doe.com,0123456789
Jane,Doe,jane@doe.com,9876543210
James,Bond,james.bond@mi6.co.uk,0612345678

We use Papa Parse for parsing csv. The parsing option is given in braces: {}, and multiple options are seperated by a space. e.g. {header="true" delimiter="."}. Please read their documentation as reference.

Externals

YouTube

{%youtube 1G4isv_Fylg %}

Vimeo

{%vimeo 124148255 %}

Gist

{%gist schacon/4277 %}

SlideShare

{%slideshare briansolis/26-disruptive-technology-trends-2016-2018-56796196 %}

Speakerdeck

{%speakerdeck sugarenia/xxlcss-how-to-scale-css-and-keep-your-sanity %}

PDF

Caution: this might be blocked by your browser if not using an https URL. {%pdf https://www.w3.org/TR/WAI-WEBCONTENT/wai-pageauth.pdf %}

MathJax

You can render LaTeX mathematical expressions using MathJax, as on math.stackexchange.com, except the space after the start $ and the space before the end $ are not allowed in the inline math:

The Gamma function satisfying $\Gamma(n) = (n-1)!\quad\forall n\in\mathbb N$ is via the Euler integral

For block level math, please give $$ and a line break before and after your math formula:

$$ x = {-b \pm \sqrt{b^2-4ac} \over 2a}. $$

$$ \Gamma(z) = \int_0^\infty t^{z-1}e^{-t}dt,. $$

More information about LaTeX mathematical expressions here.

UML Diagrams

Sequence Diagrams

You can render sequence diagrams like this:

Alice->Bob: Hello Bob, how are you?
Note right of Bob: Bob thinks
Bob-->Alice: I am good thanks!
Note left of Alice: Alice responds
Alice->Bob: Where have you been?

Flow Charts

Flow charts can be specified like this:

st=>start: Start
e=>end: End
op=>operation: My Operation
op2=>operation: lalala
cond=>condition: Yes or No?

st->op->op2->cond
cond(yes)->e
cond(no)->op2

Graphviz

digraph hierarchy {

                nodesep=1.0 // increases the separation between nodes

                node [color=Red,fontname=Courier,shape=box] //All nodes will this shape and colour
                edge [color=Blue, style=dashed] //All the lines look like this

                Headteacher->{Deputy1 Deputy2 BusinessManager}
                Deputy1->{Teacher1 Teacher2}
                BusinessManager->ITManager
                {rank=same;ITManager Teacher1 Teacher2}  // Put them on the same level
}

Mermaid

gantt
    title A Gantt Diagram

    section Section
    A task           :a1, 2014-01-01, 30d
    Another task     :after a1  , 20d
    section Another
    Task in sec      :2014-01-12  , 12d
    anther task      : 24d

Abc

X:1
T:Speed the Plough
M:4/4
C:Trad.
K:G
|:GABc dedB|dedB dedB|c2ec B2dB|c2A2 A2BA|
GABc dedB|dedB dedB|c2ec B2dB|A2F2 G4:|
|:g2gf gdBd|g2f2 e2d2|c2ec B2dB|c2A2 A2df|
g2gf g2Bd|g2f2 e2d2|c2ec B2dB|A2F2 G4:|

PlantUML

start
if (condition A) then (yes)
  :Text 1;
elseif (condition B) then (yes)
  :Text 2;
  stop
elseif (condition C) then (yes)
  :Text 3;
elseif (condition D) then (yes)
  :Text 4;
else (nothing)
  :Text else;
endif
stop

Vega-Lite

{
  "$schema": "https://vega.github.io/schema/vega-lite/v4.json",
  "data": {"url": "https://vega.github.io/editor/data/barley.json"},
  "mark": "bar",
  "encoding": {
    "x": {"aggregate": "sum", "field": "yield", "type": "quantitative"},
    "y": {"field": "variety", "type": "nominal"},
    "color": {"field": "site", "type": "nominal"}
  }
}

Fretboard

-oO-*-
--o-o-
-o-oo-
-o-oO-
-oo-o-
-*O-o-
  3

More information about sequence diagrams syntax here. More information about flow charts syntax here. More information about graphviz syntax here More information about mermaid syntax here More information about abc syntax here More information about vega syntax here More information about fretboard syntax here

Alert Area

:::success Yes :tada: :::

:::info This is a message :mega: :::

:::warning Watch out :zap: :::

:::danger Oh No! :fire: :::

:::spoiler Click to show details You found me :stuck_out_tongue_winking_eye: :::

:::spoiler {state=“open”} Expand the spoiler container by default You found me :stuck_out_tongue_winking_eye: :::

Callouts

[!NOTE] Here’s note synta
inside note

[!TIP] Show me tips

[!TODO]
asdfasdf
list 2

[!DANGER] THings happen

[!WARNING] warning THings happen

Typography

Headers

# h1 Heading
## h2 Heading
### h3 Heading
#### h4 Heading
##### h5 Heading
###### h6 Heading

Horizontal Rules

Typographic Replacements

Enable typographer option to see result.

test.. test… test….. test?….. test!….

!!!!!! ???? ,,

Remarkable – awesome

“Smartypants, double quotes”

‘Smartypants, single quotes’

Emphasis

This is bold text

This is italic text

~~Deleted text~~

lu~lala~

Superscript: 19^th^

Subscript: H~2~O

++Inserted text++

==Marked text==

{ruby base|rubytext}

Blockquotes

Blockquotes can also be nested…
…by using additional greater-than signs right next to each other…
…or with spaces between arrows.

Lists

Unordered

Create a list by starting a line with +, -, or *
Sub-lists are made by indenting 2 spaces:
- Marker character change forces new list start:
  - Ac tristique libero volutpat at
  - Facilisis in pretium nisl aliquet
  - Nulla volutpat aliquam velit
Very easy!

Ordered

Lorem ipsum dolor sit amet
Consectetur adipiscing elit
Integer molestie lorem at massa
You can use sequential numbers…

…or keep all the numbers as 1.
feafw
332
242
2552
e2

Start numbering with offset:

Code

Inline code

Indented code

// Some comments
line 1 of code
line 2 of code
line 3 of code

Block code “fences”

Sample text here...

Syntax highlighting

var foo = function (bar) {
  return bar++;
};

console.log(foo(5));

Tables

Option	Description
data	path to data files to supply the data that will be passed into templates.
engine	engine to be used for processing templates. Handlebars is the default.
ext	extension to be used for dest files.

Right aligned columns

Option	Description
data	path to data files to supply the data that will be passed into templates.
engine	engine to be used for processing templates. Handlebars is the default.
ext	extension to be used for dest files.

Left aligned columns

Option	Description
data	path to data files to supply the data that will be passed into templates.
engine	engine to be used for processing templates. Handlebars is the default.
ext	extension to be used for dest files.

Center aligned columns

Option	Description
data	path to data files to supply the data that will be passed into templates.
engine	engine to be used for processing templates. Handlebars is the default.
ext	extension to be used for dest files.

Links

link text link with title Autoconverted link https://github.com/nodeca/pica

Images

Minion Stormtroopocat Like links, Images also have a footnote style syntax Alt text With a reference later in the document defining the URL location:

![Minion](https://octodex.github.com/images/minion.png =200x200) Show the image with given size

Footnotes

Footnote 1 link¹. Footnote 2 link². Inline footnote^[Text of inline footnote] definition. Duplicated footnote reference².

Definition Lists

Term 1

Definition 1 with lazy continuation.

Term 2 with inline markup

Definition 2

{ some code, part of Definition 2 }

Third paragraph of definition 2.

Compact style:

Term 1 ~ Definition 1

Term 2 ~ Definition 2a ~ Definition 2b

Abbreviations

This is an HTML abbreviation example. It converts “HTML”, but keeps intact partial entries like “xxxHTMLyyy” and so on.

*[HTML]: Hyper Text Markup Language

Footnote can have markup and multiple paragraphs. ↩︎
Footnote text. ↩︎ ↩︎

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