What language is this? (from Beatport.com)

Thats from the bottom of the main page with disabled CSS:

[% _.each(data.artists, function(artist){ %] Follow [%=artist.name=%] [% }); %] Follow [%=data.label.name=%]
[% if(data.saleType === 'purchase') { %] [% print(BP.functions.formatCurrency(data.price, "usd")); %] [% } else { %] View Track [% } %]
[% _.each(data, function(item){ %] [% var classes = [], active = '', small = ''; if(item.children){ classes.push('parent'); } if(item.played){ classes.push('played'); } if(item.parentId){ classes.push('child'); small = 'small'; } if(item.queuePosition === (BP.queuePosition||-1) ){ classes.push('active'); active = 'active'; } %]
[% if(item.type == 'track'){ %] [%=item.title=%] [% } else { %] [%=item.name=%] [% } %] [% if(item.artists){ %] [%=BP.functions.renderTemplate('tmpl-player-artists', item )=%] [% } %] [% if(item.label){ %] [%=item.label.name=%] [% } %] [% if(item.releaseDate){ %] [%=item.releaseDate=%] [% } %] [% if(item.type==="track"||item.type==="release"||item.type==="chart"){ %] [%=BP.functions.renderTemplate('tmpl-btn-buy-small', item)=%] [% } %] X
[% }); %]

Code (markup):

It looks a little bit like JavaScript, but I am not sure...
By the way, how do you think the website is implemented (music store, about 250k hits per day)?
What programming language do they use (or what would be the best language for a site like that)?
Do they play (preview) tracks from the disk evrytime somebody wants to listen (reference to files in MySQL, but actual files read from a disk etc)?
Just wondering...

Thank you.

 

seems encoded javascript

 

Javascript? It does not look like any form of Javescript I ever saw.

 

looks java script.

 

in the script there is declared array so it's store music, and some of tag like artist and etc.. so any one can know easily it's implements music.

 

Yeah kind of a array but encoded

mmerlinn - If you didn't see those code because...look carefully at this time.

 

That's from "View source":

<script type="text/javascript">var BP={};</script>
<script type="text/javascript" src="/s/a95ca36b3053ac520df648128898a3ea/js/core/jquery-1.6.4.min.js"></script>
<script type="text/javascript" src="/s/a95ca36b3053ac520df648128898a3ea/js/core/lab.js"></script>

It looks like BP might be an object (music player on the top of the page), and it would be that encoded JavaScript.

[% data.size = data.size ? data.size : 'medium'; %] [%=BP.functions.formatCurrency(data.price, "usd") =%]
[% data.size = 'small'; %] [%= BP.functions.renderTemplate('tmpl-btn-buy', data)=%]
[% switch(data.saleType){ case 'mixOnly': print(BP.functions.renderTemplate('tmpl-btn-mix-only',data)); break; case 'albumOnly': print(BP.functions.renderTemplate('tmpl-btn-album-only',data)); break; case 'download': print(BP.functions.renderTemplate('tmpl-btn-promo-dl',data)); break; case 'purchase': data.size = 'small'; print(BP.functions.renderTemplate('tmpl-btn-buy',data)); break; }%]
[% var rendered = []; _.each(data, function(genre){ genre.type = 'genre'; rendered.push( BP.templates['tmpl-item-link']({data:genre}) ); }); %] [%=rendered.join(', ')=%]
[%=data.name=%]
[%=data.title=%]
[%=data.name=%]
[%= BP.functions.renderArtistTemplate( data, 'remixer') =%]
[%= BP.functions.renderArtistTemplate( data, 'artist') =%]
[%=col.displayName=%]
[%=data.filter.name=%] [% if(data.filter.count) { %] ([%=data.filter.count=%]) [% } %]
[%=data.filter.name=%]
[% if(data.filter.custom){ %] [%=BP.functions.renderTemplate('tmpl-filter-menu-custom-date-range', {filter: data.filter } )=%] [% } else { %] [%=BP.functions.renderTemplate('tmpl-filter-menu-group-available', { filter: data.filter })=%] [% } %]
[%=data.groupName=%]
[% _.each(data.group, function(filter, name){ if(filter.applied){ %] [%=BP.functions.renderTemplate('tmpl-filter-menu-group-applied', { filter: filter })=%] [% } else { %] [%=BP.functions.renderTemplate('tmpl-filter-menu-group-available', { filter: filter })=%] [% } %] [% }); %]
[% _.each( data.metadata.facets.fields, function(group, groupName){ %] [%=BP.functions.renderTemplate('tmpl-filter-menu-group', { group: group, groupName: groupName })=%] [% }); %]
[% for( var i in data.metadata.filtering.dateFilters) { var filter = data.metadata.filtering.dateFilters; %] [% if(filter.applied) { %] [%=BP.functions.renderTemplate('tmpl-filter-menu-group-applied', { filter: filter })=%] [% } else { %] [%=BP.functions.renderTemplate('tmpl-filter-menu-date-available', {filter: filter } )=%] [% } %] [% } %]
[% if(data.bpm){ print(data.bpm); } %] [% if(data.key){ print(data.key.standard.letter); if( data.key.standard.flat ){ print('♭'); } else if( data.key.standard.sharp ){ print('♯'); } if( data.key.standard.chord ){ print( ' ' + data.key.standard.chord); } } %]
[% shareHrefs = BP.functions.getShareHrefs(data); %]
[% _.each(data.artists, function(artist){ %] Follow [%=artist.name=%] [% }); %] Follow [%=data.label.name=%]
[% if(data.saleType === 'purchase') { %] [% print(BP.functions.formatCurrency(data.price, "usd")); %] [% } else { %] View Track [% } %]
[% _.each(data, function(item){ %] [% var classes = [], active = '', small = ''; if(item.children){ classes.push('parent'); } if(item.played){ classes.push('played'); } if(item.parentId){ classes.push('child'); small = 'small'; } if(item.queuePosition === (BP.queuePosition||-1) ){ classes.push('active'); active = 'active'; } %]
[% if(item.type == 'track'){ %] [%=item.title=%] [% } else { %] [%=item.name=%] [% } %] [% if(item.artists){ %] [%=BP.functions.renderTemplate('tmpl-player-artists', item )=%] [% } %] [% if(item.label){ %] [%=item.label.name=%] [% } %] [% if(item.releaseDate){ %] [%=item.releaseDate=%] [% } %] [% if(item.type==="track"||item.type==="release"||item.type==="chart"){ %] [%=BP.functions.renderTemplate('tmpl-btn-buy-small', item)=%] [% } %] X
[% }); %]