Algorithm to get the excel-like column name of a number

Question

I\'m working on a script that generate some Excel documents and I need to convert a number into its column name equivalent. For example:

1 => A
2 => B
         


        

Answer 1

To anyone looking for a Javascript implementation of this, here is @ircmaxell's answer in Javascript..

function getNameFromNumber(num){
    let numeric = num%26;
    let letter = String.fromCharCode(65+numeric);
    let num2 = parseInt(num/26);
    if(num2 > 0) {
      return getNameFromNumber(num2 - 1)+letter;
    } else {
      return letter;
    }
}