jQuery code to remove decimals on the front end.

gistfile1.js

jQuery(function(){
    $('.sprice, #price, #cartItems .list, #orderDetails .list, #orderList tr td').each(function(){
        cleanPriceText($(this));
    });
});
    
function cleanPriceText($ele){
    var text;
    text = $ele.text();
    text = text.replace(/(\$[0-9\.\,\s]+)\.00/g, '$1');
    $ele.text(text);            
}
    
function customProductDetailChangePriceHandler(){
    cleanPriceText($('#price'));
}