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I want to make a binary to text converter. I have already made a text to binary converter. Here is the code for that:

function convertText() {
    var output = document.getElementById("binaryConvert");
    var input = document.getElementById("textConvert").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;
    }
}

But I don't know how to convert binary to text. Anyone know? Also if it is not binary they are inputting then in the textConvert box it has a value of "That is not binary you are inputting" or something like that. Here is all of my code:

<!doctype html>
<html>
<head>
<title>Binary Converter</title>
<script type="text/javascript" src=".10.2/jquery.min.js"></script>
<script type="text/javascript">
function convertText() {
    var output = document.getElementById("binaryConvert");
    var input = document.getElementById("textConvert").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;
    }
}
</script>
<noscript>
   Please enable JavaScript in your browsers settings to use this tool.
</noscript>
</head>
<body>
<center>
<div class="container">
    <span class="main">Binary Converter</span><br>
    <textarea class="textConvert" id="textConvert" onKeyUp="convertText()" placeholder="Input text to convert to Binary"></textarea>
    <textarea class="binaryConvert" id="binaryConvert" placeholder="Binary text" readonly></textarea>
    <div class="about">Made by <strong>Omar Latreche</strong></div>
</div>
</center>
</body>
</html>

Edit: I figured it out. Here is the code:

function convertBinary() {
    var bintext, textresult="", binlength;
    bintext = document.getElementById("text_result").value.replace(/[^01]/g, "");
    binlength = bintext.length-(bintext.length%8);
    for (z=0; z < binlength; z=z+8) {
        textresult += String.fromCharCode(parseInt(bintext.substr(z,8),2));
    }
    document.getElementById("text_convert").value = textresult;
}

Thanks for all answers!

I want to make a binary to text converter. I have already made a text to binary converter. Here is the code for that:

function convertText() {
    var output = document.getElementById("binaryConvert");
    var input = document.getElementById("textConvert").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;
    }
}

But I don't know how to convert binary to text. Anyone know? Also if it is not binary they are inputting then in the textConvert box it has a value of "That is not binary you are inputting" or something like that. Here is all of my code:

<!doctype html>
<html>
<head>
<title>Binary Converter</title>
<script type="text/javascript" src="http://ajax.googleapis./ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script type="text/javascript">
function convertText() {
    var output = document.getElementById("binaryConvert");
    var input = document.getElementById("textConvert").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;
    }
}
</script>
<noscript>
   Please enable JavaScript in your browsers settings to use this tool.
</noscript>
</head>
<body>
<center>
<div class="container">
    <span class="main">Binary Converter</span><br>
    <textarea class="textConvert" id="textConvert" onKeyUp="convertText()" placeholder="Input text to convert to Binary"></textarea>
    <textarea class="binaryConvert" id="binaryConvert" placeholder="Binary text" readonly></textarea>
    <div class="about">Made by <strong>Omar Latreche</strong></div>
</div>
</center>
</body>
</html>

Edit: I figured it out. Here is the code:

function convertBinary() {
    var bintext, textresult="", binlength;
    bintext = document.getElementById("text_result").value.replace(/[^01]/g, "");
    binlength = bintext.length-(bintext.length%8);
    for (z=0; z < binlength; z=z+8) {
        textresult += String.fromCharCode(parseInt(bintext.substr(z,8),2));
    }
    document.getElementById("text_convert").value = textresult;
}

Thanks for all answers!

  • javascript
  • html
  • binary
Share Improve this question edited Jun 6, 2017 at 20:41 Alfabravo 7,5896 gold badges49 silver badges83 bronze badges asked Jan 26, 2014 at 11:02 16.uk16.uk 5793 gold badges9 silver badges19 bronze badges 1
  • It'd be great to set the solution as an answer to mark it as accepted, so others will now that the question is solved :) – Alfabravo Commented Jun 6, 2017 at 20:41
Add a ment  | 

3 Answers 3

Reset to default 3

Yes, use parseInt as suggested above - and consider using (+input).toString(2) to convert your input to binary :)

function convertText() {
   var output = document.getElementById("binaryConvert");
   var input = document.getElementById("textConvert").value;
   output.value = (+input).toString(2);
}

function convertBinary() {
   var output = document.getElementById("textConvert");
   var input = document.getElementById("binaryConvert").value;
   output.value = parseInt(input,2);
}

You can use parseInt() with a radix of 2.

Ex: parseInt('10001', 2); returns 17

And if your input string isn't valid binary, it returns NaN which you can test using isNaN()

function binarytoString(str) {
  return str.split(/\s/).map(function (val){
    return String.fromCharCode(parseInt(val, 2));
  }).join("");
}

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