Andela assessment

ordinal.js

function numberToOrdinal(n) {

  if (n==0) {
    return n;
}
var j = n % 10,
    k = n % 100;
   

if (j == 1 && k != 11) {
    return n + "st";
}
if (j == 2 && k != 12) {
    return n + "nd";
}
if (j == 3 && k != 13) {
    return n + "rd";
}
return n + "th";
}

test.js

let assert = require("chai").assert;
describe('Challenge', function() {
  it('should handle single digits', function() {
    assert.equal(numberToOrdinal(0), "0");
    assert.equal(numberToOrdinal(1), "1st");
    assert.equal(numberToOrdinal(2), "2nd");
    assert.equal(numberToOrdinal(3), "3rd");
    assert.equal(numberToOrdinal(4), "4th");
    assert.equal(numberToOrdinal(5), "5th");
  });
});