<s>
Grunt	B-Language
is	O
a	O
JavaScript	B-Language
task	B-Application
runner	I-Application
,	O
a	O
tool	O
used	O
to	O
automatically	O
perform	O
frequent	O
tasks	B-General_Concept
such	O
as	O
minification	B-Language
,	O
compilation	B-Language
,	O
unit	O
testing	O
,	O
and	O
linting	B-Device
.	O
</s>
<s>
It	O
uses	O
a	O
command-line	B-Application
interface	I-Application
to	O
run	O
custom	O
tasks	B-General_Concept
defined	O
in	O
a	O
file	O
(	O
known	O
as	O
a	O
Gruntfile	O
)	O
.	O
</s>
<s>
Grunt	B-Language
was	O
created	O
by	O
Ben	O
Alman	O
and	O
is	O
written	O
in	O
Node.js	B-Language
.	O
</s>
<s>
It	O
is	O
distributed	O
via	O
npm	B-Language
.	O
</s>
<s>
As	O
of	O
October	O
2022	O
,	O
there	O
were	O
more	O
than	O
6,000	O
plugins	B-Application
available	O
in	O
the	O
Grunt	B-Language
ecosystem	O
.	O
</s>
<s>
Companies	O
that	O
use	O
Grunt	B-Language
include	O
Adobe	O
Systems	O
,	O
jQuery	B-Language
,	O
Twitter	B-Application
,	O
Mozilla	B-Operating_System
,	O
Bootstrap	B-Application
,	O
Cloudant	B-General_Concept
,	O
Opera	B-Application
,	O
WordPress	B-Application
,	O
Walmart	O
,	O
and	O
Microsoft	O
.	O
</s>
<s>
Grunt	B-Language
was	O
originally	O
created	O
by	O
Ben	O
Alman	O
in	O
2012	O
as	O
an	O
efficient	O
alternative	O
to	O
simplify	O
writing	O
and	O
maintaining	O
a	O
suite	O
of	O
JavaScript	B-Language
build	O
process	O
tasks	B-General_Concept
in	O
one	O
huge	O
file	O
.	O
</s>
<s>
It	O
was	O
designed	O
as	O
a	O
task-based	O
command	B-Application
line	I-Application
build	B-Application
tool	I-Application
for	O
JavaScript	B-Language
projects	O
.	O
</s>
<s>
Grunt	B-Language
is	O
primarily	O
used	O
to	O
automate	O
tasks	B-General_Concept
that	O
need	O
to	O
be	O
performed	O
routinely	O
.	O
</s>
<s>
There	O
are	O
thousands	O
of	O
plugins	B-Application
that	O
can	O
be	O
installed	O
and	O
used	O
directly	O
to	O
accomplish	O
some	O
commonly	O
used	O
tasks	B-General_Concept
.	O
</s>
<s>
One	O
of	O
Grunt	B-Language
's	O
most	O
desirable	O
features	O
is	O
that	O
it	O
is	O
highly	O
customizable	O
—	O
i.e.	O
,	O
it	O
allows	O
developers	O
to	O
add	O
,	O
extend	O
,	O
and	O
modify	O
custom	O
tasks	B-General_Concept
to	O
fit	O
their	O
personal	O
needs	O
;	O
each	O
task	O
has	O
a	O
set	O
of	O
configuration	O
options	O
that	O
the	O
user	O
can	O
set	O
.	O
</s>
<s>
Moreover	O
,	O
Grunt	B-Language
offers	O
the	O
ability	O
to	O
define	O
custom	O
tasks	B-General_Concept
,	O
which	O
can	O
combine	O
multiple	O
existing	O
tasks	B-General_Concept
into	O
a	O
single	O
task	O
or	O
add	O
entirely	O
new	O
functionality	O
.	O
</s>
<s>
Grunt	B-Language
's	O
command-line	B-Application
interface	I-Application
(	O
CLI	O
)	O
can	O
be	O
installed	O
globally	O
through	O
npm	B-Language
.	O
</s>
<s>
Executing	O
the	O
grunt	B-Language
command	O
will	O
load	O
and	O
run	O
the	O
version	O
of	O
Grunt	B-Language
locally	O
installed	O
in	O
the	O
current	O
directory	O
.	O
</s>
<s>
Hence	O
,	O
we	O
can	O
maintain	O
different	O
versions	O
of	O
Grunt	B-Language
in	O
different	O
folders	O
and	O
execute	O
each	O
one	O
as	O
we	O
wish	O
.	O
</s>
<s>
To	O
use	O
Grunt	B-Language
in	O
a	O
project	O
,	O
two	O
specific	O
files	O
need	O
to	O
be	O
created	O
in	O
the	O
root	O
directory	O
,	O
namely	O
package.json	O
and	O
a	O
Gruntfile	O
.	O
</s>
<s>
package.json	O
-	O
contains	O
the	O
metadata	O
for	O
the	O
project	O
including	O
name	O
,	O
version	O
,	O
description	O
,	O
authors	O
,	O
licenses	O
and	O
its	O
dependencies	O
(	O
Grunt	B-Language
plugins	B-Application
required	O
by	O
the	O
project	O
)	O
.	O
</s>
<s>
Gruntfile	O
-	O
a	O
valid	O
JavaScript	B-Language
or	O
CoffeeScript	B-Application
file	O
named	O
"	O
Gruntfile.js	O
"	O
or	O
"	O
Gruntfile.coffee	O
"	O
that	O
contains	O
code	O
to	O
configure	O
tasks	B-General_Concept
,	O
load	O
existing	O
plugins	B-Application
and/or	O
create	O
custom	O
tasks	B-General_Concept
.	O
</s>
<s>
Tasks	B-General_Concept
are	O
the	O
modules	O
that	O
perform	O
a	O
specified	O
job	O
.	O
</s>
<s>
Developers	O
can	O
load	O
predefined	O
tasks	B-General_Concept
from	O
existing	O
Grunt	B-Language
plugins	B-Application
and/or	O
write	O
custom	O
code	O
to	O
define	O
their	O
own	O
tasks	B-General_Concept
depending	O
on	O
their	O
requirements	O
.	O
</s>
<s>
Once	O
defined	O
,	O
these	O
tasks	B-General_Concept
can	O
be	O
run	O
from	O
the	O
command	B-Application
line	I-Application
by	O
simply	O
executing	O
grunt	B-Language
<taskname>	O
.	O
</s>
<s>
If	O
the	O
<taskname>	O
defined	O
in	O
the	O
Gruntfile	O
is	O
'	O
default	O
 '	O
then	O
simply	O
executing	O
grunt	B-Language
will	O
suffice	O
.	O
</s>
<s>
The	O
following	O
is	O
an	O
example	O
of	O
a	O
Gruntfile	O
written	O
in	O
JavaScript	B-Language
that	O
shows	O
how	O
to	O
load	O
plugins	B-Application
,	O
create	O
custom	O
tasks	B-General_Concept
and	O
configure	O
them	O
:	O
</s>
<s>
In	O
the	O
above	O
example	O
,	O
executing	O
the	O
grunt	B-Language
command	O
will	O
run	O
<customtaskName2> which has been defined above as a combination of both <taskName1> and <customTaskName1>	O
.	O
</s>
<s>
Plugins	B-Application
are	O
reusable	O
code	O
that	O
defines	O
a	O
set	O
of	O
tasks	B-General_Concept
.	O
</s>
<s>
Each	O
plugin	B-Application
internally	O
contains	O
a	O
tasks	B-General_Concept
directory	O
with	O
JavaScript	B-Language
files	O
that	O
have	O
the	O
same	O
syntax	O
as	O
a	O
Gruntfile	O
.	O
</s>
<s>
Most	O
of	O
the	O
Grunt	B-Language
plugins	B-Application
are	O
published	O
with	O
the	O
keyword	O
gruntplugin	O
in	O
npm	B-Language
and	O
prefixed	O
with	O
grunt	B-Language
.	O
</s>
<s>
This	O
helps	O
Grunt	B-Language
in	O
showing	O
all	O
the	O
plugins	B-Application
in	O
Grunt	B-Language
's	O
.	O
</s>
<s>
The	O
plugins	B-Application
officially	O
supported	O
by	O
Grunt	B-Language
are	O
prefixed	O
with	O
grunt-contrib	O
and	O
are	O
also	O
marked	O
with	O
a	O
star	O
symbol	O
in	O
the	O
plugins	B-Application
listing	O
.	O
</s>
<s>
Some	O
popular	O
plugins	B-Application
include	O
,	O
,	O
.	O
</s>
<s>
Developers	O
can	O
even	O
create	O
their	O
own	O
Grunt	B-Language
plugins	B-Application
by	O
using	O
the	O
grunt-init	O
plugin	B-Application
and	O
publish	O
them	O
to	O
npm	B-Language
using	O
the	O
npm	B-Language
publish	O
command	O
.	O
</s>
<s>
The	O
following	O
are	O
some	O
of	O
the	O
advantages	O
of	O
using	O
Grunt	B-Language
:	O
</s>
<s>
Access	O
to	O
many	O
predefined	O
plugins	B-Application
that	O
can	O
be	O
used	O
to	O
work	O
with	O
JavaScript	B-Language
tasks	B-General_Concept
and	O
on	O
static	O
content	O
.	O
</s>
<s>
Allows	O
users	O
to	O
customize	O
tasks	B-General_Concept
using	O
predefined	O
plugins	B-Application
.	O
</s>
<s>
Allows	O
users	O
to	O
add	O
their	O
own	O
plugins	B-Application
and	O
publish	O
them	O
to	O
npm	B-Language
.	O
</s>
<s>
Ant	B-Application
or	O
Apache	B-Application
Ant	I-Application
is	O
a	O
Java-based	O
build	B-Application
tool	I-Application
.	O
</s>
<s>
Ant	B-Application
has	O
a	O
little	O
over	O
a	O
hundred	O
built-in	O
tasks	B-General_Concept
that	O
are	O
better	O
suited	O
to	O
projects	O
with	O
a	O
Java	B-Language
build	O
structure	O
.	O
</s>
<s>
Writing	O
custom	O
code	O
in	O
Ant	B-Application
requires	O
users	O
to	O
write	O
a	O
JAR	B-Language
file	I-Language
and	O
reference	O
it	O
from	O
XML	B-Protocol
.	O
</s>
<s>
This	O
would	O
add	O
unnecessary	O
complexities	O
to	O
projects	O
that	O
do	O
not	O
require	O
Java	B-Language
themselves	O
.	O
</s>
<s>
Ant	B-Application
build	O
configurations	O
are	O
listed	O
in	O
XML	B-Protocol
rather	O
than	O
in	O
JSON	B-General_Concept
format	O
.	O
</s>
<s>
Rake	B-Application
allows	O
developers	O
to	O
define	O
tasks	B-General_Concept
in	O
Ruby	B-Language
.	O
</s>
<s>
Rake	B-Application
does	O
n't	O
have	O
the	O
concept	O
of	O
plugins	B-Application
or	O
predefined	O
tasks	B-General_Concept
which	O
means	O
all	O
the	O
required	O
actions	O
must	O
be	O
written	O
and	O
then	O
executed	O
.	O
</s>
<s>
This	O
makes	O
the	O
developments	O
costly	O
when	O
compared	O
to	O
Grunt	B-Language
which	O
has	O
a	O
large	O
set	O
of	O
reusable	O
plugins	B-Application
.	O
</s>
<s>
Gulp.js	B-Language
is	O
a	O
JavaScript	B-Language
based	O
task	B-Application
runner	I-Application
tool	O
similar	O
to	O
Grunt	B-Language
since	O
both	O
follow	O
a	O
modular-based	O
architecture	O
and	O
are	O
based	O
on	O
npm	B-Language
.	O
</s>
<s>
Gulp	O
tasks	B-General_Concept
are	O
defined	O
by	O
code	O
rather	O
than	O
configuration	O
.	O
</s>
<s>
Gulp	O
is	O
faster	O
than	O
Grunt	B-Language
.	O
</s>
<s>
Grunt	B-Language
uses	O
temporary	O
files	O
to	O
transfer	O
output	O
from	O
one	O
task	O
to	O
another	O
whereas	O
in	O
Gulp	O
files	O
are	O
piped	B-General_Concept
between	O
the	O
tasks	B-General_Concept
.	O
</s>
