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Read specific elements and add count to class name using jquery

How can I count the number of elements with a specific class and add a count to each one as a new class name using jquery?

$('.full-screen').each(function(i) {
    $(this).addClass('.full-screen-', i);
});

I want to create:

<div class="full-screen full-screen-1"></div>
<div class="full-screen full-screen-2"></div>
<div class="full-screen full-screen-3"></div>
<div class="full-screen full-screen-4"></div>
<div class="full-screen full-screen-5"></div>
+3


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3 answers


You can do

$('.full-screen').each(function(i) {
    $(this).addClass('full-screen-'+(i+1));

});

      

        
        
        
      

    


$('.full-screen').each(function(i) {
    $(this).addClass('full-screen-'+(i+1));
    console.log($(this)[0].outerHTML)
});
      

        
        
        
      

    
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="full-screen full-screen-1"></div>
<div class="full-screen full-screen-2"></div>
<div class="full-screen full-screen-3"></div>
<div class="full-screen full-screen-4"></div>
<div class="full-screen full-screen-5"></div>
Run codeHide result


+1


source


Also you can use .addClass( function )

instead of using.each() 

$('.full-screen').addClass(function(i) {
    return 'full-screen-'+(i+1);
});

      

        
        
        
      

    


$('.full-screen').addClass(function(i) {
    return 'full-screen-'+(i+1);
});
console.log($('.full-screen'))
      

        
        
        
      

    
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="full-screen"></div>
<div class="full-screen"></div>
<div class="full-screen"></div>
<div class="full-screen"></div>
<div class="full-screen"></div>
Run codeHide result


+1


source


try it

$(".full-screen").each(function((i){
    $(this).addClass("full-screen-" + (i+1));
});
0


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