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IntToBase.js

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/**

* @function intToBase

* @description Convert a number from decimal system to another (till decimal)

* @param {Number} number Number to be converted

* @param {Number} base Base of new number system

* @returns {String} Converted Number

* @see [HornerMethod](https://en.wikipedia.org/wiki/Horner%27s_method)

* @example

* const num1 = 125 // Needs to be converted to the binary number system

* gornerScheme(num, 2); // ===> 1111101

* @example

* const num2 = 125 // Needs to be converted to the octal number system

* gornerScheme(num, 8); // ===> 175

*/

const intToBase = (number, base) => {

if (typeof number !== 'number' || typeof base !== 'number') {

throw new Error('Input data must be numbers')

}

// Zero in any number system is zero

if (number === 0) {

return '0'

}

let absoluteValue = Math.abs(number)

let convertedNumber = ''

while (absoluteValue > 0) {

// Every iteration last digit is taken away

// and added to the previous one

const lastDigit = absoluteValue % base

convertedNumber = lastDigit + convertedNumber

absoluteValue = Math.trunc(absoluteValue / base)

}

// Result is whether negative or positive,

// depending on the original value

if (number < 0) {

convertedNumber = '-' + convertedNumber

}

return convertedNumber

}

export { intToBase }