<s>
Flapjax	B-Language
is	O
a	O
programming	O
language	O
built	O
on	O
JavaScript	B-Language
.	O
</s>
<s>
It	O
provides	O
a	O
spreadsheet-like	O
reactive	B-Architecture
programming	I-Architecture
,	O
dataflow	B-Application
computing	O
style	O
,	O
termed	O
functional	B-Application
reactive	I-Application
programming	I-Application
,	O
making	O
it	O
easy	O
to	O
create	O
reactive	B-Architecture
web	O
pages	O
without	O
the	O
burden	O
of	O
callbacks	O
and	O
potentially	O
inconsistent	O
mutation	O
.	O
</s>
<s>
Flapjax	B-Language
can	O
be	O
viewed	O
in	O
two	O
ways	O
:	O
either	O
as	O
a	O
library	B-Library
,	O
for	O
use	O
in	O
regular	O
JavaScript	B-Language
programs	O
,	O
or	O
as	O
a	O
new	O
language	O
that	O
the	O
compiler	B-Language
converts	O
into	O
generic	O
JavaScript	B-Language
.	O
</s>
<s>
In	O
either	O
case	O
,	O
the	O
resulting	O
programs	O
can	O
be	O
run	O
in	O
a	O
regular	O
web	B-Application
browser	I-Application
.	O
</s>
<s>
Flapjax	B-Language
comes	O
with	O
persistent	B-Application
storage	I-Application
and	O
a	O
simple	O
application	B-Application
programming	I-Application
interface	I-Application
(	O
API	B-Application
)	O
that	O
masks	O
the	O
complexity	O
of	O
using	O
Ajax	B-General_Concept
,	O
and	O
sharing	O
and	O
access	O
control	O
(	O
AC	O
)	O
for	O
server	B-Application
data	O
.	O
</s>
<s>
It	O
is	O
free	B-License
and	I-License
open-source	I-License
software	I-License
released	O
under	O
a	O
3-clause	O
BSD	O
license	O
.	O
</s>
<s>
The	O
Flapjax	B-Language
compiler	B-Language
is	O
written	O
in	O
the	O
language	O
Haskell	B-Language
.	O
</s>
