underscoreのeachではbreakが出来ない

var res = 0;
var nums = [1,2,3,4,5,6,7,8,9];

$.each(nums, function(i, v) {
  res = v;
  if (res === 5) {
    return false;
  }

  return true;
});

console.assert(res === 5);

_.each(nums, function(v, i) {
  res = v;
  if (res === 5) {
    return false;
  }

  return true;
});

console.assert(res === 9);

// _.someでbreak
_.some(nums, function(v, i) {
  res = v;
  if (res === 5) {
    return true;
  }

  return false;
});

console.assert(res === 5);

// _.everyでbreak
_.every(nums, function(v, i) {
  res = v;
  if (res === 5) {
    return false;
  }

  return true;
});

console.assert(res === 5);