<s>
JSDoc	B-Language
is	O
a	O
markup	O
language	O
used	O
to	O
annotate	O
JavaScript	B-Language
source	O
code	O
files	O
.	O
</s>
<s>
Using	O
comments	O
containing	O
JSDoc	B-Language
,	O
programmers	O
can	O
add	O
documentation	O
describing	O
the	O
application	B-Application
programming	I-Application
interface	I-Application
of	O
the	O
code	O
they	O
're	O
creating	O
.	O
</s>
<s>
This	O
is	O
then	O
processed	O
,	O
by	O
various	O
tools	O
,	O
to	O
produce	O
documentation	O
in	O
accessible	O
formats	O
like	O
HTML	B-Language
and	O
Rich	O
Text	O
Format	O
.	O
</s>
<s>
The	O
JSDoc	B-Language
specification	O
is	O
released	O
under	O
CC	O
BY-SA	O
3.0	O
,	O
while	O
its	O
companion	O
documentation	B-Protocol
generator	I-Protocol
and	O
parser	O
library	O
is	O
free	B-Application
software	I-Application
under	O
the	O
Apache	B-Application
License	I-Application
2.0	I-Application
.	O
</s>
<s>
JSDoc	B-Language
's	O
syntax	O
and	O
semantics	O
are	O
similar	O
to	O
those	O
of	O
the	O
Javadoc	B-Language
scheme	O
,	O
which	O
is	O
used	O
for	O
documenting	O
code	O
written	O
in	O
Java	B-Language
.	O
</s>
<s>
JSDoc	B-Language
differs	O
from	O
Javadoc	B-Language
,	O
in	O
that	O
it	O
is	O
specialized	O
to	O
handle	O
JavaScript	B-Language
's	O
dynamic	B-Language
behaviour	O
.	O
</s>
<s>
An	O
early	O
example	O
using	O
a	O
Javadoc-like	O
syntax	O
to	O
document	O
JavaScript	B-Language
was	O
released	O
in	O
1999	O
with	O
the	O
Netscape/Mozilla	O
project	O
Rhino	B-Language
,	O
a	O
JavaScript	B-Language
run-time	B-Device
system	I-Device
written	O
in	O
Java	B-Language
.	O
</s>
<s>
It	O
included	O
a	O
toy	O
"	O
JSDoc	B-Language
"	O
HTML	B-Language
generator	O
,	O
versioned	O
up	O
to	O
1.3	O
,	O
as	O
an	O
example	O
of	O
its	O
JavaScript	B-Language
capabilities	O
.	O
</s>
<s>
All	O
main	O
generations	O
of	O
"	O
JSDoc	B-Language
"	O
were	O
headed	O
by	O
micmaths	O
(	O
Michael	O
Mathews	O
)	O
.	O
</s>
<s>
He	O
started	O
with	O
JSDoc.pm	O
in	O
2001	O
,	O
a	O
simple	O
system	O
written	O
in	O
Perl	B-Language
,	O
in	O
cooperation	O
with	O
Canadian	O
programmer	O
Gabriel	O
Reid	O
.	O
</s>
<s>
It	O
was	O
hosted	O
on	O
SourceForge	B-Application
in	O
a	O
CVS	B-Application
repository	I-Application
.	O
</s>
<s>
By	O
JSDoc	B-Language
1.0	O
(	O
2007	O
)	O
he	O
rewrote	O
the	O
system	O
in	O
JavaScript	B-Language
(	O
again	O
for	O
Rhino	B-Language
)	O
,	O
and	O
after	O
a	O
set	O
of	O
expansions	O
JSDoc	B-Language
2.0	O
(	O
2008	O
)	O
gained	O
the	O
name	O
"	O
jsdoc-toolkit	O
"	O
.	O
</s>
<s>
Released	O
under	O
the	B-License
MIT	I-License
License	I-License
,	O
it	O
was	O
hosted	O
in	O
a	O
Subversion	B-General_Concept
repository	I-General_Concept
on	O
Google	B-Protocol
Code	I-Protocol
.	O
</s>
<s>
By	O
2011	O
he	O
has	O
refactored	O
the	O
system	O
into	O
JSDoc	B-Language
3.0	O
and	O
hosted	O
the	O
result	O
on	O
GitHub	B-Application
.	O
</s>
<s>
It	O
now	O
runs	O
on	O
Node.js	B-Language
.	O
</s>
<s>
Some	O
of	O
the	O
more	O
popular	O
annotation	O
tags	O
used	O
in	O
modern	O
JSDoc	B-Language
are	O
:	O
</s>
<s>
Note	O
that	O
the	O
and	O
tags	O
can	O
in	O
fact	O
be	O
omitted	O
:	O
the	O
ECMASyntax	O
is	O
sufficient	O
to	O
make	O
their	O
identities	O
clear	O
,	O
and	O
JSDoc	B-Language
makes	O
use	O
of	O
that	O
.	O
</s>
<s>
Google	O
's	O
Closure	O
Linter	O
and	O
Closure	B-Language
Compiler	I-Language
.	O
</s>
<s>
The	O
latter	O
extracts	O
the	O
type	O
information	O
to	O
optimize	O
its	O
output	O
JavaScript	B-Language
.	O
</s>
<s>
TypeScript	B-Language
can	O
perform	O
type	O
checking	O
for	O
JavaScript	B-Language
files	O
with	O
JSDoc	B-Language
type	O
annotations	O
.	O
</s>
<s>
The	O
JSDoc	B-Language
syntax	O
has	O
been	O
described	O
at	O
length	O
in	O
the	O
Apress	O
book	O
Foundations	O
of	O
Ajax	O
.	O
</s>
<s>
IntelliJ	B-Language
IDEA	I-Language
,	O
NetBeans	B-Application
,	O
Visual	B-Language
Studio	I-Language
Code	I-Language
and	O
RubyMine	B-Application
understand	O
JSDoc	B-Language
syntax	O
.	O
</s>
<s>
,	O
the	O
Mozilla	B-Operating_System
Inline	O
Editor	O
uses	O
JSDoc.pm	O
.	O
</s>
<s>
The	O
application	O
framework	O
uses	O
JSDoc	B-Language
.	O
</s>
<s>
SproutCore	O
documentation	O
was	O
generated	O
using	O
JSDoc	B-Language
.	O
</s>
<s>
Visual	B-Application
Studio	I-Application
,	O
WebStorm	O
and	O
many	O
other	O
Integrated	B-Application
development	I-Application
environments	I-Application
or	O
Text	B-Application
Editors	I-Application
offer	O
Code	O
Completion	O
and	O
other	O
assistance	O
based	O
on	O
JSDoc	B-Language
comments	O
.	O
</s>
<s>
Open	O
source	O
Atom	B-Application
editor	I-Application
supports	O
JSDoc	B-Language
via	O
the	O
plugin	O
.	O
</s>
