JSFiddle - React, Tailwind, and code Playground

HTML

<input class="entry" type="number" min="0" step="0.1" />

JavaScript

$('.entry').change(function(){
   // parse the typed value as a floating point number
   var num = parseFloat(this.value);
    
   // ensure there are two decimal places
   this.value = num.toFixed(2);
});