Design a Decimal to Binary Converter in VueJS

Last Updated : 24 Apr, 2024

The Decimal to Binary Converter is a simple web application built using Vue.js that allows users to convert decimal numbers to binary format. It provides a user-friendly interface for the easy conversion of decimal numbers into a binary representation.

Prerequisites

Approach

Create a new HTML file named index.html. Include the necessary CDN links for the Vue.js and Tailwind CSS.
Design the layout using HTML elements such as the <div>, <input>, <button>, and <p>. Use appropriate classes from the Tailwind CSS for styling.
Apply Tailwind CSS classes to style the elements for a modern and responsive design.
Use utility classes for the spacing, borders, and colors as needed. Initialize a new Vue instance with the el option set to #app.
Define data properties for the storing the decimal number input and binary conversion result.
Implement a method to convert the decimal number to the binary upon button click. Use the parseInt() and toString(2) functions to the perform the conversion.
Add validation to the ensure that a valid decimal number is entered before conversion. Display an alert message if the input is invalid.
Show the binary equivalent of the entered decimal number below the input field after conversion.

CDN link:

https://cdn.jsdelivr.net/npm/vue@2.6.14/dist/vue.js

Example: This example shows the implementation of the above-explained approach.

HTML

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content=
"width=device-width, initial-scale=1.0">
    <title>
        The Decimal to Binary Converter
    </title>
    <script src=
"https://cdn.jsdelivr.net/npm/vue@2.6.14/dist/vue.js">
    </script>
    <link rel="stylesheet" href=
"https://cdn.jsdelivr.net/npm/tailwindcss@2.2.19/dist/tailwind.min.css">
</head>

<body class="bg-gray-200 py-10">
    <div id="app" class="max-w-md mx-auto 
        bg-white p-8 rounded shadow-md">
        <h1 class="text-2xl font-semibold mb-4">
            Decimal to Binary Converter
        </h1>
        <div class="mb-4">
            <label for="decimalInput" class="block mb-1">
                Enter Decimal Number:
            </label>
            <input type="number" id="decimalInput" 
                v-model.number="decimalNumber"
                class="w-full px-4 py-2 border rounded 
                    focus:outline-none focus:border-blue-500"
                placeholder="Enter decimal number">
        </div>
        <button @click="convertToBinary"
            class="bg-blue-500 text-white px-4 py-2 
                rounded hover:bg-blue-600">
                Convert
            </button>
        <div v-if="binaryNumber" class="mt-4">
            <p>
                <strong>
                    Binary Equivalent:
                </strong> 
                {{ binaryNumber }}
            </p>
        </div>
    </div>
    <script>
        new Vue({
            el: '#app',
            data: {
                decimalNumber: null,
                binaryNumber: null
            },
            methods: {
                convertToBinary() {
                    if (!this.decimalNumber) {
                        alert('Please enter a decimal number');
                        return;
                    }
                    const decimal = parseInt(this.decimalNumber);
                    if (isNaN(decimal)) {
                        alert(`Invalid input. Please enter a
                               valid decimal number`);
                        return;
                    }
                    this.binaryNumber = decimal.toString(2);
                }
            }
        });
    </script>
</body>

</html>