Why doesn't my conditional operator work?

Question

Why does this function return undefined instead of "old"?

function test(age) {
  12 < age ? "old" : "young";
}

test(15);

because this is not valid javascript. read http://stackoverflow.com/questions/11069278/javascript-if-else-shorthand — dahrens, Nov 11 '16 at 00:20

score 3 · Accepted Answer · answered Nov 11 '16 at 00:20

3

Your condition is fine. You need to return

function test(age) {
  return 12 < age ? "old" : "young";
}

console.log(test(15));

When you leave off a return statement, a function returns undefined by default.

answered Nov 11 '16 at 00:20

KevBot

1 Answers1