JSFiddle - React, Tailwind, and code Playground

HTML

<input class='totalprice' value='1.25'/>
<input class='totalprice' value='0.25'/>
<input class='totalprice' value='3.00'/>
<input class='totalprice' value='2.50'/>
<input class='totalprice' value='0.01'/>

JavaScript

var sum = 0.0;
$('.totalprice').each(function()
{
    sum += parseFloat(this.value);
});
alert(sum);