tjenkinson / number-to-alphabet

Simple library to convert a number to sequence of letters and vice versa.

Number-To-Alphabet

Convert a number to a string and vice versa, using the provided alphabet (or default of a-z).

Installation

$ npm install number-to-alphabet

Examples

import { NumberToAlphabet } from 'number-to-alphabet';

const defaultAlphabet = new NumberToAlphabet();
defaultAlphabet.numberToString(1); // 'a'
defaultAlphabet.numberToString(2); // 'b'
defaultAlphabet.numberToString(27); // 'aa'
defaultAlphabet.numberToString(28); // 'ab'
defaultAlphabet.stringToNumber('ab'); // 28

const customAlphabet = new NumberToAlphabet(['A', 'B']);
customAlphabet.numberToString(1); // 'A'
customAlphabet.numberToString(2); // 'B'
customAlphabet.numberToString(3); // 'AA'
customAlphabet.numberToString(4); // 'AB'
customAlphabet.stringToNumber('AB'); // 4