JSFiddle - React, Tailwind, and code Playground

HTML

<div class="a">
aa
</div>

<div class="a">
aa
</div>

<div class="a">
aa
</div>

CSS

.a{
    
   float:left;
    width:50px;
}

JavaScript

function a(){
    for(var c=0; c<3; c++){
        alert(c);
        $('.a:eq('+c+')').mouseover(function(){alert(c)});       
    }
    
}
                          
                          
a();