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