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Rohit Sharma
Rohit Sharma

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Create a weight converter with Javascript

Hello Everyone, Today we're going to create a Weight Converter with the help of basic JavaScript. If you're a beginner then this article may be useful for you.
Our Weight Converter will look like this:-

For this project we use Bootstrap classes. If in any case you don't know about Bootstrap then no problem you can easily style this web page with CSS from scratch.

Add the following code within the <head> .

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" integrity="sha384-rwoIResjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous">  
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HTML

<body>
    <div class="container">
        <div class="row">
            <div class="col-md-6 offset-md-3">
                <h1 class="display-4 text-center mb-3">Weight Converter</h1>
                <form>
                    <div class="form-group">
                        <input type="number" class="form--control form--control-lg" placeholder="Enter Pounds....." id="lbsInput">
                    </div>
                </form>
                <div id="output">
                    <div class="card card-primary mb-2">
                        <div class="card-block">
                            <h4>Grams:</h4>
                            <div id="gramsOutput">

                            </div>
                        </div>
                    </div>
                    <div class="card card-success mb-2">
                        <div class="card-block">
                            <h4>Kilograms:</h4>
                            <div id="kgOutput">

                            </div>
                        </div>
                    </div>
                    <div class="card card-danger mb-2">
                        <div class="card-block">
                            <h4>Ounces:</h4>
                            <div id="ozOutput">

                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>

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CSS

body{
            margin-top: 70px;
            background: #333;
            color: #ffffff;

        }
        #output{
            visibility: hidden;
        }
        input[type=number]{
            width: 100%;
        }
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JavaScript

This part is also easy. Our code contains only 10 lines of code.

document.getElementById('lbsInput').addEventListener('input',function(e){
            let lbs= e.target.value;
            let input = document.getElementById('lbsInput');
            let data = input.value;
            document.getElementById('gramsOutput').innerHTML= lbs/0.0022046;
            document.getElementById('kgOutput').innerHTML= lbs/2.2046;
            document.getElementById('ozOutput').innerHTML= lbs*16;
            document.getElementById('output').style.visibility='visible';

            if (data =='') {
                document.getElementById('output').style.visibility='hidden';
            }
        });
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I hope you will love it β™₯. If you love it then support me.

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