ES6: 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
 *
 * 6/20/2016 - DragonI
 * Hipsterize faisalman's excellent code to ES6
 */

  const BINARY = 2
  const DECIMAL = 10
  const HEX = 16

  const ConvertBase = num => ({
    from: (baseFrom) => {
      return {
        to: (baseTo) => {
          return parseInt(num, baseFrom).toString(baseTo)
        }
      }
    }
  })

  // binary to decimal
  export function bin2dec (num) {
    return ConvertBase(num).from(BINARY).to(DECIMAL)
  }

  // binary to hexadecimal
  export function bin2hex (num) {
    return ConvertBase(num).from(BINARY).to(HEX)
  }

  // decimal to binary
  export function dec2bin (num) {
    return ConvertBase(num).from(DECIMAL).to(BINARY)
  }

  // decimal to hexadecimal
  export function dec2hex (num) {
    return ConvertBase(num).from(DECIMAL).to(HEX)
  }

  // hexadecimal to binary
  export function hex2bin (num) {
    return ConvertBase(num).from(HEX).to(BINARY)
  }

  // hexadecimal to decimal
  export function hex2dec (num) {
    return ConvertBase(num).from(HEX).to(DECIMAL)
  }

/*
 * Usage example:
 * import {bin2dec, dec2hex, hex2bin, dec2bin} from './baseConverter'
 *
 * bin2dec('111') // '7'
 * dec2hex('42')  // '2a'
 * hex2bin('f8')  // '11111000'
 * dec2bin('22')  // '10110'
 */

Here's an example on WebpackBin. Check the console for the results