Answers for "what is the uses of each in jquery"

for each jquery

$('.testimonial').each(function(){
    //if statement here 
    // use $(this) to reference the current div in the loop
    //you can try something like...
    if(condition){
    }
 });

each jquery

$(".demo").each(function() {                // parse each .demo element
document.write($(this).text() + "\n");  // output their text
});