How to convert text to binary using javascript

Question

I want to make a text to binary converter. For example if someone types in 'Hello' it would return 0100100001100101011011000110110001101111 How can I do this? I have tried this but something is wrong:

function convertBinary() {
    var output = document.getElementById("outputBinary");
    var input = document.getElementById("inputBinary").value;
    output.value = "";
    for (i=0; i < input.length; i++) {
        output.value +=input[i].charCodeAt(0).toString(2);
    }
}

Here is my code:

<!doctype html>
<html>
<head>
<title>Binary Converter</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script type="text/javascript">
function convertBinary() {
    var output = document.getElementById("outputBinary");
    var input = document.getElementById("inputBinary").value;
    output.value = "";
    for (i=0; i < input.length; i++) {
        output.value +=input[i].charCodeAt(0).toString(2);
    }
}
</script>
</head>
<body>
<center>
<div class="container">
    <span class="main">Binary Converter</span><br>
    <input type="text" onKeyUp="convertBinary()" id="inputBinary" class="inputBinary" placeholder="Enter Text"><br>
    <input type="text" id="outputBinary" class="outputBinary" readonly>
</div>
</center>
</body>
</html>

Any help will be greatly appreciated. Thanks, Omar.

Well when I use a binary to text it gives me a error "Error: Malformed binary. Your binary code is must be divisible by 8". — 16.uk
– 16.uk, Commented Jan 25, 2014 at 14:35
I don't know how error shows on your screen. In my system it works perfectly on chrome and firefox. — user2198005
– user2198005, Commented Jan 25, 2014 at 14:37

Richard Kenneth Niescior · Accepted Answer · 2014-01-25 14:46:34Z

2

function convertBinary() {
    var output = document.getElementById("outputBinary");
    var input = document.getElementById("inputBinary").value;
    output.value = "";
    for (i=0; i < input.length; i++) {var e=input[i].charCodeAt(0);var s = "";
    do{
        var a =e%2;
        e=(e-a)/2;
        s=a+s;
        }while(e!=0);
        while(s.length<8){s="0"+s;}
        output.value+=s;
    }
}

You welcome my friend

answered Jan 25, 2014 at 14:46

Richard Kenneth Niescior

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1 Comment

16.uk Over a year ago

Thank you very much! I appreciate it very much!

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