get-ordinal.js

《JavaScript精粹》 源文件下载

// Please note: this file contains snippets for comparison
// it is not self-contained or ready-to-use code as such


function getOrdinal(n) {
  var ord = 'th';

  if (n % 10 == 1 && n % 100 != 11)
  {
    ord = 'st';
  }
  else if (n % 10 == 2 && n % 100 != 12)
  {
    ord = 'nd';
  }
  else if (n % 10 == 3 && n % 100 != 13)
  {
    ord = 'rd';
  }

  return ord;
}