--description--

Given a string of numbers separated by various punctuation, return the largest number.

• The given string will only contain numbers and separators.
• Separators can be commas (","), exclamation points ("!"), question marks ("?"), colons (":"), or semi-colons (";").

--hints--

largestNumber("1,2") should return 2.

assert.equal(largestNumber("1,2"), 2);

largestNumber("4;15:60,26?52!0") should return 60.

assert.equal(largestNumber("4;15:60,26?52!0"), 60);

largestNumber("-402,-1032!-569:-947;-633?-800!-1012;-402,-723?-8102!-3011") should return -402.

assert.equal(largestNumber("-402,-1032!-569:-947;-633?-800!-1012;-402,-723?-8102!-3011"), -402);

largestNumber("12;-50,99.9,49.1!-10.1?88?16") should return 99.9.

assert.equal(largestNumber("12;-50,99.9,49.1!-10.1?88?16"), 99.9);

--seed--

--seed-contents--

function largestNumber(str) {

  return str;
}

--solutions--

function largestNumber(str) {
  const numbers = str.split(/[,!?:;]/).map(Number);
  return Math.max(...numbers);
}