Convert From/To Binary/Decimal/Hexadecimal in JavaScript

baseConverter.js

/**
* Convert From/To Binary/Decimal/Hexadecimal in JavaScript
* https://gist.github.com/faisalman
*
* Copyright 2012-2015, Faisalman <[email protected]>
* Licensed under The MIT License
* http://www.opensource.org/licenses/mit-license
*/

(function(){

    var ConvertBase = function (num) {
        return {
            from : function (baseFrom) {
                return {
                    to : function (baseTo) {
                        return parseInt(num, baseFrom).toString(baseTo);
                    }
                };
            }
        };
    };
        
    // binary to decimal
    ConvertBase.bin2dec = function (num) {
        return ConvertBase(num).from(2).to(10);
    };
    
    // binary to hexadecimal
    ConvertBase.bin2hex = function (num) {
        return ConvertBase(num).from(2).to(16);
    };
    
    // decimal to binary
    ConvertBase.dec2bin = function (num) {
        return ConvertBase(num).from(10).to(2);
    };
    
    // decimal to hexadecimal
    ConvertBase.dec2hex = function (num) {
        return ConvertBase(num).from(10).to(16);
    };
    
    // hexadecimal to binary
    ConvertBase.hex2bin = function (num) {
        return ConvertBase(num).from(16).to(2);
    };
    
    // hexadecimal to decimal
    ConvertBase.hex2dec = function (num) {
        return ConvertBase(num).from(16).to(10);
    };
    
    this.ConvertBase = ConvertBase;
    
})(this);

/*
* Usage example:
* ConvertBase.bin2dec('111'); // '7'
* ConvertBase.dec2hex('42'); // '2a'
* ConvertBase.hex2bin('f8'); // '11111000'
* ConvertBase.dec2bin('22'); // '10110'
*/

What is the best way to convert your HEX into a DWORD? In particular I have a uint coming from a device. JS ToInt32() does not seem to do the trick.

so FA7B 8524 should equal ‭-92568284‬ and not equal ‭4202399012‬

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---

POST /wifi HTTP/1.1
Host: 52.15.64.34:8080
Content-Type:application/json; charset=utf-8
Content-Length: 835

{"route_mac":"FC596736DF23","devices":[{"mac":"444B9A6C5C88","data":"02011A0AFF4C0010050B10C909AB","rssi":-35},{"mac":"08DF1F99F8B7","data":"0201020303BEFE0DFF1001400C0141F45C89AE4C1E","rssi":-65},{"mac":"D72BD6E59DF5","data":"0201061AFF4C000215F7826DA64FA24E988024BC5B71E0893E12345678B3","rssi":-81},{"mac":"D84694191046","data":"0201041BFF4C000215EBEFD08370A247C89837E7B5634DF52411110000C55D","rssi":-34},{"mac":"D960ADD80C37","data":"0201041BFF4C000215EBEFD08370A247C89837E7B5634DF524D8ADE70CCB5E","rssi":-30},{"mac":"D5F2FC26189E","data":"020105020A000303E7FE09FF4EABD5F2FC26189E050948573031","rssi":-79},{"mac":"CF9CDD68F3DF","data":"0201041BFF4C000215EBEFD08370A247C89837E7B5634DF5241111E000C55C","rssi":-35},{"mac":"C7406B446830","data":"0201041BFF4C000215EBEFD08370A247C89837E7B5634DF5241111E000C55E","rssi":-40}],"allCount":8}

To convert large binary to hex use this code

https://gist.github.com/Aravin/011f17528f90be6bb4f5a4cb253647d6

based on the suggestion of @SeanCannon I made this conversion from utf8 to binary, I just tested node

const convert = {
  utfBin: (s) => parseInt(Buffer.from(s, "utf-8").toString("hex"), 16).toString(2),
  binUtf: (s) => Buffer.from(parseInt(s, 2).toString(16), "hex").toString("utf-8"),
};

const bin = convert.utfBin("1808z");
console.log("utfBin: ", bin);

console.log("binUtf: ", convert.binUtf(bin));

thanks very much. i like this project so.