setInterval VS setTimeout | JavaScript

1. setInterval
1. setInterval(funcName, delay)
2. Repeat until manually break.
3. var object = $('article:not(.reveal)');
   var i = 0;
   setInterval(function(){
          if( i >= object.length ) return false;
          alert('Hi');
          i++; 
      }, 200);
2. setTimeout
1. setTimeout(func, delay)
2. Run only once.
3. setTimeout(function(){
         that.removeClass('loading').find('.text').slideDown(320);   
   }, 1000);