short circuiting in unslider.js

short circuiting in unslider.js

Hey guys , 

was just going through the source of Unslider.js and came across the following line of code : 

  1. el.animate(obj, speed, easing) && ul.animate($.extend({left: '-' + index + '00%'}, obj), speed, easing, function(data) {  // some code }

its line 183 in the plugin :  unslider.js

i understand its short circuiting , but i am still pritty unsure what it is . what i mean is . 

  1. el.animate(obj, speed, easing)
so does that line really mean just execute the animaton function on el and after that execute the animation function on ul ?? 

Thank you . 

gautam.