JSFiddle - React, Tailwind, and code Playground

by Lalji Tadhani

HTML

<script src="https://code.jquery.com/jquery-3.4.1.slim.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.css">
<input type="text" id="operand1" />
<input type="text" id="operand2" />


<button id="add">
+
</button>
<button id="sub">
-
</button>
<button id="mul">
*
</button>
<button id="div">
/
</button>

<div id="result">

</div>

CSS

.row {
  background: #f8f9fa;
  margin-top: 20px;
}

.col {
  border: solid 1px #6c757d;
  padding: 10px;
}

JavaScript

//Retrieved html elements
var opOne = document.getElementById("operand1");
var opTwo = document.getElementById("operand2");

//operators
var add = document.getElementById("add");
var sub = document.getElementById("sub");
var mul = document.getElementById("mul");
var div = document.getElementById("div");

//Result field
var result = document.getElementById("results");

//Button
var button = document.getElementById("button");


//When button is clicked
button.addEventListener("click", () => {

    if(sub) {
            result.textContent = Number(opOne.value) - Number(opTwo.value);
                console.log("Subtraction works");
    }  else if(add) {
            result.textContent = Number(opOne.value) + Number(opTwo.value);
                console.log("Additon works");
    }  else if(mul) {
            result.textContent = Number(opOne.value) * Number(opTwo.value);
                console.log("Multiplication works")
    }   else if(div) {
            result.textContent = Number(opOne.value) / Number(opTwo.value);
                console.log("Divison works")
    }
});