JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-maskmoney/3.0.2/jquery.maskMoney.min.js"></script>
Fails<br/>
<input class="maskfail" value="2.1"/> should be 2.10<br/>
<input class="maskfail" /><br/>
<input class="maskfail" value="200"/> should be 200.00

<br/><br/>
Pass<br/>
<input class="maskpass" value="2.1"/> is 2.10<br/>
<input class="maskpass" /><br/>
<input class="maskpass" value="200"/> is 200.00<br/>

JavaScript

//var value = prompt("enter value","1");

//$("#demo1").val($("#demo1").val()*100);
$(".maskfail").each(function (){
    $(this).maskMoney()
           .maskMoney('mask',$(this).val());
});

$(".maskpass").each(function (){
    $(this).maskMoney()
           .maskMoney('mask',Number($(this).val()));
});