12 KiB
Features
Introduction
HackMD is a realtime collaborate markdown note in all platforms. This mean you can do some notes with any other in Desktop, Tablet or even Phone. You can Sign in via Facebook, Twitter, GitHub, Dropbox in the homepage.
This service still in early stage, might be buggy or crash. Please report issue in GitHub. If you need instant help, please use 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.
Upload image
You can simply press the camera button . Or drag-n-drop image in editor, even paste image works! It will automatically upload to imgur, nothing to worry 🎉
Share note
If you want to share a editable note, just copy the url. If you want to share a read-only note, simply press share button and copy the url.
Save
Currently, you can save to Dropbox or save as .md to local.
Import
Like save feature, you can also import .md from Dropbox . Or import from your Clipboard , and that can parse some html which might be useful 😃
Permission
There is a little button on the top right of the view. You can change the permission via theres options. It might be one of below:
Freely: Anyone can edit this note. Editable: Signed user can edit this note. Locked: Only owner can edit this note. Private: Only owner can view and edit this note.
Only the owner of the note can change the permission
Embed
<iframe width="100%" height="500" src="http://hackmd.io/features" frameborder="0"></iframe>
Slide Mode
You can use some syntax to divide your note into slides. Then use Slide Mode to made a presentation. Visit above link for detail.
View
Table of content
You can look at bottom right place of the view area, there is a TOC button . Press that will show current table of content and will emphasis which your section on. Support up to three header levels.
Permalink
Every header will automatically add a permalink on the right side. You can hover and click to anchor on it.
Edit
Shortcut keys
Just like sublime text, which is pretty quick and convinent.
For more infomations, see here.
Auto complete
This editor provide full auto complete hint of markdown.
- Emojis: type
:
to show hint. - 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.
Tags
Using tags like below, these will show in your history.
tags: features
cool
updated
YAML metadata
Provide advanced note information to set the browse behavior, visit above link for detail
- robots: set web robots meta
- lang: set browse language
- dir: set text direction
- breaks: set to use line breaks or not
- mathjax: set to parse mathjax or not
Emoji
You can type any emoji like this 😄 😃 😢 😉
See full emoji list here
Todo List
- Todos
- Buy some salad
- Brush teeth
- Drink some water
Code block
We support many code languages, use the auto complete to see the 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 specify the code block languagues. 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 line number, use
=+
var s = "JavaScript syntax highlighting";
alert(s);
Blockquotes tags
Using like below to specifiy your name, time and color to differ 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]
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 %}
MathJax
You can render LaTeX mathematical expressions using MathJax, as on math.stackexchange.com:
The Gamma function satisfying \Gamma(n) = (n-1)!\quad\forall n\in\mathbb N
is via the Euler integral
$$
x = {-b \pm \sqrt{b^2-4ac} \over 2a}.
$$
\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
And flow charts 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
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
Alert area
:::success Yes 🎉 :::
:::info This is a message 📣 :::
:::warning Watch out ⚡ :::
:::danger Oh No 🔥 :::
Typography
Headers
# h1 Heading
## h2 Heading
### h3 Heading
#### h4 Heading
##### h5 Heading
###### h6 Heading
Horizontal rules
Typographic replacements
Enable typographer option to see result.
(c) (C) (r) (R) (tm) (TM) (p) (P) +-
test.. test... test..... test?..... test!....
!!!!!! ???? ,,
Remarkable -- awesome
"Smartypants, double quotes"
'Smartypants, single quotes'
Emphasis
This is bold text
This is bold text
This is italic text
This is italic text
Deleted text
lulala
Superscript: 19^th^
Subscript: H2O
++Inserted text++
==Marked text==
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
- Marker character change forces new list start:
- 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:
- foo
- bar
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
Like links, Images also have a footnote style syntax With a reference later in the document defining the URL location:
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 HTML abbreviation example. It converts "HTML", but keep intact partial entries like "xxxHTMLyyy" and so on.
*[HTML]: Hyper Text Markup Language