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In this example, you are going to write a program in JavaScript that takes binary input and convert it into a decimal value.
This program uses JavaScript parseInt(string, radix) command where string is a string representation of number and radix is the base number system to process the number.
Program Code: Binary To Decimal Converter
<!DOCTYPE html>
<html>
<head>
<title>Binary To Decimal Converter</title>
<meta charset="utf-8">
<style>
body{
background:lightgray;
}
#main{
position:absolute;
top:10%;
left:23%;
width:40%;
background:teal;
text-align:center;
padding:6%;
}
#bin,#dec{
width:50%;
margin:1%;
height:30px;
font-size:16px;
font-weight:bold;
}
.btn {
width:23%;
padding:15px;
margin:10px;
background:#30160e;
border:1px solid #30160e;
color:whitesmoke;
}
.lbl {
font-size:16px;
font-weight:bold;
font-family:ariel,sans-serif;
padding:15px;
}
</style>
</head>
<body>
<div id="main">
<h1>Binary To Decimal Converter</h1>
<label class="lbl" for="bin">Enter Binary Number</label><br>
<input type="text" id="bin"><br>
<label class="lbl" for="dec">Decimal Output</label><br>
<input type="text" id="dec"><br>
<button onclick="binToDec()" class="btn">Convert</button>
<button onclick="binToDecReset()" class="btn">Reset</button>
</main>
<script>
function binToDec(){
var str = document.getElementById("bin").value;
var output = parseInt(str,2);
return document.getElementById("dec").value = output;
}
function binToDecReset() {
document.getElementById("bin").value = "";
document.getElementById("dec").value = "";
}
</script>
</body>
</html>Output: Binary To Decimal Converter
